13 Delicious Slow Cooker Marinara Sauce Recipes
Get ready to transform your kitchen into an Italian bistro with these 13 Delicious Slow Cooker Marinara Sauce Recipes! Perfect for busy home cooks, these sauces promise to bring comfort, flavor, and a touch of culinary magic to your dinner table with minimal effort. Whether you’re craving a classic tomato basil or something with a spicy kick, we’ve got you covered. Keep reading to find your new favorite recipe!
Classic Slow Cooker Marinara Sauce

Zesty and aromatic, this Classic Slow Cooker Marinara Sauce is a foolproof way to bring the essence of Italian cuisine into your kitchen with minimal effort. Perfect for beginners, this methodical guide ensures a rich, flavorful sauce every time.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 large yellow onion, finely diced
- 4 cloves garlic, minced
- 1/4 cup dry red wine
- 2 (28-ounce) cans San Marzano tomatoes, crushed by hand
- 1/4 cup fresh basil leaves, torn
- 1 teaspoon fine sea salt
- 1/2 teaspoon freshly ground black pepper
- 1/2 teaspoon crushed red pepper flakes
Instructions
- Heat the extra-virgin olive oil in a medium skillet over medium heat until shimmering, about 2 minutes.
- Add the finely diced yellow onion and sauté until translucent, 5-7 minutes, stirring occasionally to prevent burning.
- Stir in the minced garlic and cook until fragrant, about 30 seconds, ensuring it doesn’t brown.
- Deglaze the skillet with the dry red wine, scraping up any browned bits, and simmer until reduced by half, about 3 minutes.
- Transfer the onion mixture to the slow cooker and add the hand-crushed San Marzano tomatoes, torn basil leaves, fine sea salt, freshly ground black pepper, and crushed red pepper flakes.
- Cover and cook on low for 6 hours, stirring once halfway through to meld the flavors.
- After cooking, use an immersion blender to puree the sauce to your desired consistency, or leave it chunky for texture.
This marinara sauce boasts a velvety texture and a balanced flavor profile, with a hint of heat from the red pepper flakes. Try serving it over al dente pasta with a sprinkle of freshly grated Parmigiano-Reggiano for a classic touch.
Spicy Slow Cooker Marinara Sauce

Venturing into the world of homemade sauces can transform your cooking, and this Spicy Slow Cooker Marinara Sauce is a perfect starting point. Its rich flavors and effortless preparation make it a staple for any home chef.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 large yellow onion, finely diced
- 4 garlic cloves, minced
- 1 teaspoon crushed red pepper flakes
- 1 tablespoon tomato paste
- 28 ounces canned San Marzano tomatoes, crushed by hand
- 1 teaspoon granulated sugar
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 cup fresh basil leaves, torn
Instructions
- Heat the extra-virgin olive oil in a slow cooker set to the sauté function until shimmering, about 2 minutes.
- Add the finely diced yellow onion and sauté until translucent, approximately 5 minutes, stirring occasionally to prevent burning.
- Stir in the minced garlic and crushed red pepper flakes, cooking until fragrant, about 30 seconds.
- Mix in the tomato paste and cook for 1 minute to deepen its flavor.
- Add the hand-crushed San Marzano tomatoes, granulated sugar, kosher salt, and freshly ground black pepper, stirring to combine.
- Cover and cook on low for 6 hours, allowing the flavors to meld beautifully.
- Stir in the torn fresh basil leaves just before serving to preserve their vibrant color and aroma.
Here’s a sauce that boasts a velvety texture with a kick of heat, perfect for draping over al dente pasta or as a robust base for homemade pizza. The slow cooking process ensures a depth of flavor that’s both complex and comforting.
Garlic Lover’s Slow Cooker Marinara Sauce

Delight in the rich, aromatic flavors of this Garlic Lover’s Slow Cooker Marinara Sauce, a perfect blend of simplicity and depth that transforms basic ingredients into a sauce worth savoring. Designed for the garlic enthusiast, this recipe ensures a robust flavor profile with minimal effort, making it an ideal choice for both weeknight dinners and special occasions.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 8 cloves garlic, minced
- 1 teaspoon crushed red pepper flakes
- 1 can (28 ounces) San Marzano tomatoes, crushed by hand
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 cup fresh basil leaves, torn
Instructions
- Heat the extra-virgin olive oil in a slow cooker set to the sauté function until shimmering, about 2 minutes.
- Add the minced garlic and crushed red pepper flakes, sautéing until fragrant, approximately 1 minute, being careful not to burn the garlic.
- Pour in the hand-crushed San Marzano tomatoes, including their juices, and stir to combine with the garlic and pepper flakes.
- Season the mixture with kosher salt and freshly ground black pepper, stirring well to incorporate.
- Cover the slow cooker and set to low heat, allowing the sauce to simmer for 6 hours, stirring occasionally to prevent sticking.
- During the last 30 minutes of cooking, add the torn fresh basil leaves, stirring them into the sauce to infuse their flavor.
- After cooking, use an immersion blender to lightly puree the sauce for a smoother texture, if desired, leaving some chunks for body.
Expect a sauce that’s velvety with a punch of garlic and a subtle heat from the red pepper flakes. Serve it over al dente pasta with a sprinkle of Parmesan, or use it as a base for a heartier meat sauce. Either way, its depth of flavor will elevate any dish it accompanies.
Herb-Infused Slow Cooker Marinara Sauce

This herb-infused slow cooker marinara sauce is a game-changer for anyone looking to elevate their pasta nights with minimal effort. The slow cooker does all the work, melding the flavors together into a rich, aromatic sauce that’s bursting with freshness.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 medium yellow onion, finely diced
- 4 garlic cloves, minced
- 28 ounces San Marzano tomatoes, crushed
- 1 tablespoon tomato paste
- 1 teaspoon granulated sugar
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 cup fresh basil leaves, chopped
- 2 tablespoons fresh oregano leaves, chopped
- 1 tablespoon fresh thyme leaves
- 1/2 teaspoon crushed red pepper flakes
Instructions
- Heat the extra-virgin olive oil in a skillet over medium heat until shimmering, about 1 minute.
- Add the finely diced yellow onion and sauté until translucent, about 5 minutes, stirring occasionally.
- Stir in the minced garlic and cook until fragrant, about 30 seconds, being careful not to burn it.
- Transfer the onion and garlic mixture to the slow cooker.
- Add the crushed San Marzano tomatoes, tomato paste, granulated sugar, kosher salt, and freshly ground black pepper to the slow cooker, stirring to combine.
- Stir in the chopped fresh basil leaves, fresh oregano leaves, fresh thyme leaves, and crushed red pepper flakes.
- Cover and cook on low for 6 hours, allowing the flavors to meld together beautifully.
- After cooking, use an immersion blender to puree the sauce to your desired consistency, or leave it chunky for a more rustic texture.
Lusciously smooth with a vibrant herbaceousness, this marinara sauce clings perfectly to pasta or can be used as a robust base for pizza. For a creative twist, try swirling it into creamy polenta or as a dipping sauce for homemade garlic knots.
Chunky Vegetable Slow Cooker Marinara Sauce

Ready to transform your kitchen into a haven of hearty, homemade flavors? This Chunky Vegetable Slow Cooker Marinara Sauce is a foolproof way to bring the essence of Italian cooking into your home, with minimal effort and maximum taste.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 large yellow onion, finely diced
- 3 cloves garlic, minced
- 1 large carrot, peeled and finely diced
- 1 large celery stalk, finely diced
- 1 red bell pepper, seeded and diced
- 28 ounces canned San Marzano tomatoes, crushed by hand
- 1 tablespoon tomato paste
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/2 teaspoon red pepper flakes
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 cup fresh basil leaves, torn
Instructions
- Heat the extra-virgin olive oil in a large skillet over medium heat until shimmering, about 1 minute.
- Add the finely diced yellow onion and minced garlic to the skillet, sautéing until translucent and fragrant, approximately 5 minutes.
- Incorporate the diced carrot, celery, and red bell pepper into the skillet, cooking until the vegetables begin to soften, about 7 minutes.
- Transfer the sautéed vegetables to a slow cooker, adding the hand-crushed San Marzano tomatoes, tomato paste, dried oregano, dried basil, red pepper flakes, kosher salt, and freshly ground black pepper.
- Stir the mixture thoroughly to combine all ingredients evenly.
- Cover and cook on low heat for 6 hours, allowing the flavors to meld and the vegetables to become tender.
- During the last 30 minutes of cooking, stir in the torn fresh basil leaves to infuse the sauce with a bright, herbal note.
- After cooking, adjust the seasoning if necessary, ensuring a balanced flavor profile.
Expect a sauce with a robust texture and a depth of flavor that only slow cooking can achieve. Serve it over al dente pasta, or use it as a rich base for a vegetable lasagna, layering it with sheets of pasta and a blend of cheeses for a comforting meal.
Meaty Slow Cooker Marinara Sauce

On a bustling weekday, nothing beats the convenience and heartiness of a slow-cooked marinara sauce, rich with meaty depth and aromatic herbs. This recipe simplifies the process, guiding you through each step to ensure a flavorful outcome every time.
Ingredients
- 1 lb ground beef, 80% lean
- 1/2 lb Italian sausage, casings removed
- 1 large yellow onion, finely diced
- 4 garlic cloves, minced
- 28 oz canned San Marzano tomatoes, crushed by hand
- 6 oz tomato paste
- 1/2 cup dry red wine
- 2 tbsp extra virgin olive oil
- 1 tbsp granulated sugar
- 1 tsp kosher salt
- 1/2 tsp freshly ground black pepper
- 1/4 tsp red pepper flakes
- 1 tbsp fresh basil, finely chopped
- 1 tbsp fresh oregano, finely chopped
- 1 bay leaf
Instructions
- Heat the extra virgin olive oil in a large skillet over medium heat until shimmering, about 2 minutes.
- Add the finely diced yellow onion and sauté until translucent, approximately 5 minutes, stirring occasionally to prevent burning.
- Incorporate the minced garlic and sauté for an additional 1 minute, until fragrant.
- Increase the heat to medium-high and add the ground beef and Italian sausage. Cook, breaking apart with a wooden spoon, until no pink remains, about 7 minutes.
- Deglaze the skillet with the dry red wine, scraping up any browned bits from the bottom, and simmer until the wine is reduced by half, about 3 minutes.
- Transfer the meat mixture to a slow cooker. Add the hand-crushed San Marzano tomatoes, tomato paste, granulated sugar, kosher salt, freshly ground black pepper, red pepper flakes, fresh basil, fresh oregano, and bay leaf. Stir to combine.
- Cover and cook on low for 6 hours, stirring occasionally to prevent sticking.
- After cooking, remove the bay leaf and adjust the seasoning if necessary.
Best enjoyed over al dente pasta, this sauce boasts a velvety texture and a robust flavor profile, with the meat lending a satisfying richness. For a creative twist, serve it atop a creamy polenta or use it as a hearty base for a lasagna.
Vegan Slow Cooker Marinara Sauce

This vegan slow cooker marinara sauce is a game-changer for anyone looking to simplify their cooking without sacrificing flavor. The slow cooker does all the work, melding the ingredients into a rich, aromatic sauce that’s perfect over pasta, in lasagna, or as a pizza base.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 large yellow onion, finely diced
- 4 garlic cloves, minced
- 1 teaspoon sea salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 teaspoon crushed red pepper flakes
- 2 tablespoons tomato paste
- 28 ounces canned whole San Marzano tomatoes, crushed by hand
- 1/4 cup fresh basil leaves, torn
- 1 teaspoon dried oregano
- 1 teaspoon coconut sugar
Instructions
- Heat the extra-virgin olive oil in a skillet over medium heat until shimmering, about 1 minute.
- Add the finely diced yellow onion and sauté until translucent, about 5 minutes, stirring occasionally to prevent burning.
- Stir in the minced garlic, sea salt, freshly ground black pepper, and crushed red pepper flakes, cooking for an additional 1 minute until fragrant.
- Add the tomato paste to the skillet, stirring continuously for 2 minutes to caramelize slightly and deepen the flavor.
- Transfer the onion mixture to the slow cooker, then add the hand-crushed San Marzano tomatoes, torn fresh basil leaves, dried oregano, and coconut sugar, stirring to combine.
- Cover and cook on low for 6 hours, stirring once halfway through to ensure even cooking.
- After cooking, use an immersion blender to puree the sauce to your desired consistency, or leave it chunky for a more rustic texture.
Just like that, you’ve got a velvety, deeply flavored marinara sauce with a hint of sweetness from the coconut sugar. Try swirling it into creamy polenta or using it as a base for a vegan meatball sub for a comforting meal.
Gluten-Free Slow Cooker Marinara Sauce

Begin your culinary journey with this gluten-free slow cooker marinara sauce, a perfect blend of simplicity and flavor that transforms basic ingredients into a rich, versatile sauce. By following these methodical steps, even beginners can achieve a homemade sauce that rivals any store-bought version.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 medium yellow onion, finely diced
- 4 cloves garlic, minced
- 28 ounces canned San Marzano tomatoes, crushed by hand
- 1 tablespoon organic cane sugar
- 1 teaspoon sea salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 teaspoon crushed red pepper flakes
- 1/4 cup fresh basil leaves, torn
Instructions
- Heat the extra-virgin olive oil in a medium skillet over medium heat until shimmering, about 2 minutes.
- Add the finely diced yellow onion to the skillet, sautéing until translucent, approximately 5 minutes, stirring occasionally to prevent burning.
- Stir in the minced garlic and cook for 1 minute until fragrant, ensuring it does not brown.
- Transfer the onion and garlic mixture to the slow cooker, adding the hand-crushed San Marzano tomatoes, organic cane sugar, sea salt, freshly ground black pepper, and crushed red pepper flakes.
- Cover and cook on low heat for 6 hours, allowing the flavors to meld beautifully.
- During the last 30 minutes of cooking, stir in the torn fresh basil leaves to infuse the sauce with a bright, herbal note.
Just as the sauce finishes, you’ll notice its velvety texture and the perfect balance of sweet, savory, and slightly spicy flavors. Serve it over gluten-free pasta, or use it as a base for a hearty vegetable lasagna for a comforting meal.
Low-Carb Slow Cooker Marinara Sauce

Gathering the right ingredients and tools is the first step to creating a delicious Low-Carb Slow Cooker Marinara Sauce that’s both simple and satisfying. Let’s walk through the process together, ensuring every step is clear and manageable, even for beginners.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 medium yellow onion, finely diced
- 4 garlic cloves, minced
- 28 ounces canned San Marzano tomatoes, crushed by hand
- 1 tablespoon tomato paste
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/2 teaspoon crushed red pepper flakes
- 1/2 teaspoon sea salt
- 1/4 teaspoon freshly ground black pepper
- 1/4 cup fresh basil leaves, chiffonade
Instructions
- Heat the extra-virgin olive oil in a medium skillet over medium heat until shimmering, about 2 minutes.
- Add the finely diced yellow onion to the skillet, sautéing until translucent, approximately 5 minutes.
- Stir in the minced garlic cloves, cooking until fragrant, about 30 seconds.
- Transfer the onion and garlic mixture to the slow cooker.
- Add the hand-crushed San Marzano tomatoes, tomato paste, dried oregano, dried basil, crushed red pepper flakes, sea salt, and freshly ground black pepper to the slow cooker, stirring to combine.
- Cover and cook on low heat for 6 hours, allowing the flavors to meld beautifully.
- After cooking, stir in the chiffonade of fresh basil leaves for a bright, herbal note.
Low and slow cooking yields a marinara sauce with a rich, velvety texture and a depth of flavor that’s both robust and nuanced. Serve it over zucchini noodles for a low-carb delight or as a base for a hearty meatball sub, sans the bread.
Extra Thick Slow Cooker Marinara Sauce

Creating a rich, Extra Thick Slow Cooker Marinara Sauce is simpler than you might think, especially when you let the slow cooker do most of the work. Carefully layering flavors and allowing them to meld over hours results in a sauce that’s both deeply flavorful and luxuriously thick.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 large yellow onion, finely diced
- 4 garlic cloves, minced
- 1/4 cup tomato paste
- 2 (28-ounce) cans San Marzano whole tomatoes, crushed by hand
- 1 teaspoon granulated sugar
- 1/2 teaspoon crushed red pepper flakes
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/2 teaspoon kosher salt
- 1/4 teaspoon freshly ground black pepper
- 1/2 cup fresh basil leaves, torn
Instructions
- Heat the extra-virgin olive oil in a large skillet over medium heat until shimmering, about 2 minutes.
- Add the finely diced yellow onion and cook, stirring occasionally, until translucent, about 5 minutes.
- Stir in the minced garlic and cook until fragrant, about 30 seconds.
- Add the tomato paste and cook, stirring constantly, for 2 minutes to deepen its flavor.
- Transfer the onion mixture to the slow cooker and add the hand-crushed San Marzano tomatoes, sugar, crushed red pepper flakes, dried oregano, dried basil, kosher salt, and freshly ground black pepper.
- Stir all ingredients until well combined.
- Cover and cook on LOW for 6 hours, stirring occasionally to prevent sticking.
- During the last 30 minutes of cooking, stir in the torn fresh basil leaves.
- For a thicker sauce, remove the lid during the last hour of cooking to allow some of the liquid to evaporate.
Delightfully thick and packed with layers of flavor, this marinara sauce clings perfectly to pasta or can be used as a robust base for lasagna. Its velvety texture and balanced acidity make it a versatile staple in any home cook’s repertoire.
Sweet and Tangy Slow Cooker Marinara Sauce

Ready to transform your kitchen into an Italian bistro with minimal effort? This Sweet and Tangy Slow Cooker Marinara Sauce is a foolproof recipe that melds simplicity with depth of flavor, perfect for beginners and seasoned cooks alike.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 large yellow onion, finely diced
- 4 garlic cloves, minced
- 1 teaspoon crushed red pepper flakes
- 1/4 cup tomato paste
- 2 (28-ounce) cans San Marzano tomatoes, crushed by hand
- 1 teaspoon granulated sugar
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 cup fresh basil leaves, torn
Instructions
- Heat the extra-virgin olive oil in a large skillet over medium heat until shimmering, about 2 minutes.
- Add the finely diced yellow onion and sauté until translucent, approximately 5 minutes, stirring occasionally to prevent burning.
- Stir in the minced garlic and crushed red pepper flakes, cooking for 1 minute until fragrant.
- Mix in the tomato paste and cook for another 2 minutes to deepen its flavor.
- Transfer the onion mixture to a slow cooker and add the hand-crushed San Marzano tomatoes, granulated sugar, kosher salt, and freshly ground black pepper.
- Cover and cook on low for 6 hours, stirring once halfway through to ensure even cooking.
- During the last 30 minutes of cooking, stir in the torn fresh basil leaves to infuse the sauce with their aroma.
- After cooking, use an immersion blender to puree the sauce to your desired consistency, or leave it chunky for texture.
The sauce will have a velvety texture with a perfect balance of sweetness and tanginess. Serve it over al dente pasta, or use it as a base for a hearty lasagna to impress your guests.
Fire-Roasted Tomato Slow Cooker Marinara Sauce

Unlock the rich, smoky flavors of summer with this effortless slow cooker marinara sauce, perfect for busy weeknights or meal prep. Using fire-roasted tomatoes as the base, this sauce develops a deep, complex flavor that simmers to perfection with minimal hands-on time.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 medium yellow onion, finely diced
- 4 garlic cloves, minced
- 1 teaspoon crushed red pepper flakes
- 2 (28-ounce) cans fire-roasted tomatoes, with juices
- 1 tablespoon granulated sugar
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 cup fresh basil leaves, torn
Instructions
- Heat the extra-virgin olive oil in a medium skillet over medium heat until shimmering, about 1 minute.
- Add the finely diced yellow onion and cook, stirring occasionally, until translucent, about 5 minutes.
- Stir in the minced garlic and crushed red pepper flakes, cooking until fragrant, about 30 seconds.
- Transfer the onion mixture to the slow cooker. Add the fire-roasted tomatoes with their juices, granulated sugar, kosher salt, and freshly ground black pepper.
- Cover and cook on LOW for 6 hours, stirring occasionally to prevent sticking.
- After cooking, use an immersion blender to puree the sauce to your desired consistency, or leave it chunky for texture.
- Stir in the torn fresh basil leaves just before serving.
Offering a velvety texture with a hint of smokiness, this marinara sauce pairs beautifully with al dente pasta, as a pizza base, or even as a dipping sauce for crusty bread. The slow cooking process melds the flavors together, creating a sauce that tastes like it simmered all day.
Creamy Slow Cooker Marinara Sauce

Zesty and rich, this Creamy Slow Cooker Marinara Sauce transforms simple ingredients into a velvety, flavorful masterpiece with minimal effort. Perfect for those who appreciate the depth of homemade sauce without the constant stirring, it’s a set-it-and-forget-it kind of recipe that yields impressive results.
Ingredients
- 2 tablespoons extra-virgin olive oil
- 1 medium yellow onion, finely diced
- 4 cloves garlic, minced
- 28 ounces canned San Marzano tomatoes, crushed by hand
- 1/2 cup heavy cream
- 1/4 cup fresh basil leaves, chiffonade
- 1 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper
- 1/4 teaspoon crushed red pepper flakes
Instructions
- Heat the extra-virgin olive oil in a skillet over medium heat until shimmering, about 2 minutes.
- Add the finely diced yellow onion and sauté until translucent, approximately 5 minutes, stirring occasionally to prevent burning.
- Stir in the minced garlic and cook for 1 minute until fragrant, being careful not to let it brown.
- Transfer the onion and garlic mixture to the slow cooker.
- Add the hand-crushed San Marzano tomatoes, kosher salt, freshly ground black pepper, and crushed red pepper flakes to the slow cooker, stirring to combine.
- Cover and cook on low heat for 6 hours, allowing the flavors to meld beautifully.
- After cooking, stir in the heavy cream and fresh basil chiffonade, then let the sauce sit for 5 minutes to thicken slightly.
- For a smoother texture, use an immersion blender to puree the sauce to your desired consistency.
Great for pairing with al dente pasta or as a luxurious dip for garlic bread, this sauce boasts a creamy texture with a balanced acidity and a hint of spice. Its versatility makes it a staple for any home cook looking to elevate their Italian dishes.
Conclusion
Nothing beats the convenience and flavor of a homemade marinara sauce simmering in your slow cooker all day. Our roundup of 13 delicious recipes offers something for every taste, from classic to creative twists. We invite you to try these mouthwatering sauces, share your favorites in the comments, and spread the love by pinning this article on Pinterest. Happy cooking!
