Discover the ultimate comfort food with this delectable slow cooker spaghetti sauce recipe!

This Crockpot spaghetti sauce is thick and rich with slow-cooked tomatoes and savory seasoned ground beef.

Perfectly seasoned and bursting with taste, this homemade sauce is sure to impress.

Slow Cooker Spaghetti Sauce on pasta with bread

Spaghetti Sauce in the Slow Cooker!

  • The secret to perfectly flavored roasted tomato sauce is utilizing the low, steady heat of a slow cooker.
  • Spaghetti sauce makes dinner easy! Add a crispy salad with Italian dressing and a hunk of homemade bread to sop up all that delicious sauce!
  • Use this sauce as a base for other delicious meals such as baked rigatoni, lasagna or stuffed peppers.
  • Pair this Crockpot spaghetti sauce with spaghetti or linguine. Or opt for short, tubular pasta varieties such as penne, ziti, or rigatoni where the sauce can cling to every curve!
mushrooms, tomatoes, onions, ground beef, tomato paste, and seasonings in a Crockpot to make slow cooker spaghetti sauce

Ingredients and Variations

Beef: Ground chicken and turkey can be mixed with ground beef, but for a little more zest, add some ground Italian sausage. Use this hand meat chopper while cooking to break it up easily.

Tomatoes: Whole canned tomatoes add visual interest and texture, but two cans of diced tomatoes can be used instead.

Mushrooms: Canned or fresh mushrooms can be used interchangeably, and some shredded zucchini, carrots, and bell peppers can be added in for those picky eaters that don’t normally care for veggies!

Seasonings: Short on time? Whip up this quick DIY Italian seasoning blend and use it in everything from dips to dressings as well as spaghetti sauce.

cooked Slow Cooker Spaghetti Sauce

How to Cook Spaghetti Sauce in a Slow Cooker

If your slow cooker has a saute function, no need to use the skillet!

  • Cook ground beef and add it to a slow cooker with the remaining ingredients (as per the recipe below).
  • Cover and cook on high for 4 hours or on slow for 8 hours (or longer). Garnish as desired, and serve.
Slow Cooker Spaghetti Sauce cooked in the pot

Tips & Tricks

There are many ways to thicken, or thin out, spaghetti sauce.

  • Add some reserved pasta water to the spaghetti sauce to thicken it.
  • Make a slurry by mixing equal amounts of cornstarch and cold water together before adding them to the pot and letting the sauce cook down with the lid off.
  • Thin out a sauce that’s too thick by adding some water or broth. Adding more canned tomatoes will only make the sauce more acidic.
  • Feel free to double up the recipe and freeze portions for future meals!
taking a scoop of Slow Cooker Spaghetti Sauce out of the pot

How To Cook The Perfect Pasta

  • Add a tablespoon of salt to boiling water and add noodles. Stir immediately to keep the noodles from sticking together.
  • Cook spaghetti to “al dente” which is cooked but still firm.
  • Do not rinse the pasta because the starch that’s been released helps the sauce cling to it.
  • Reserve pasta water to thicken the sauce later, if needed.
plated Slow Cooker Spaghetti Sauce

Storing Spaghetti Sauce

  • Slow cooker spaghetti sauce can be stored in an airtight container in the refrigerator for up to 3 days.
  • Freeze for up to 3 months in zippered bags and thaw in the refrigerator overnight or back in the slow cooker on low.

Other Crockpot Recipes!

Slow Cooker Spaghetti Sauce on pasta with bread
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Slow Cooker Spaghetti Sauce

Say goodbye to the hassle and hello to convenience, as your crockpot effortlessly transforms ingredients into a fast, easy, and incredibly delicious spaghetti sauce.
Prep Time 20 minutes
Cook Time 4 hours
Total Time 4 hours 20 minutes
Servings 12 servings
Author Candace



  • Fry ground beef on medium-high heat until browned using a wooden spoon or meat chopper.
  • Add browned meat, onions, seasonings, tomato paste, mushrooms, tomatoes, and pepper to slow cooker.
  • Cook on high for 4 hours, or low 8 hours (or longer). Serve over cooked spaghetti and garnish with freshly cracked pepper, parsley, and parmesan cheese if desired.


  • Choose quality ingredients for the best flavor. Sear or brown meat before adding it to the slow cooker.
  • Substitute Italian mix or spaghetti seasoning packet in lieu of seasonings listed in the recipe.
  • Add a second can of diced tomatoes for whole tomatoes if preferred.  
  • Allow the sauce to simmer on low heat for 6 to 8 hours.
  • Adjust seasoning to taste towards the end of the cooking process.
5 from 10 votes↑ Click stars to rate now!
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Nutrition Information

Calories: 256 | Carbohydrates: 14g | Protein: 16g | Fat: 15g | Saturated Fat: 5g | Cholesterol: 53mg | Sodium: 365mg | Potassium: 861mg | Fiber: 4g | Sugar: 8g | Vitamin A: 1440IU | Vitamin C: 29.2mg | Calcium: 73mg | Iron: 3.5mg

Nutrition information does not include optional ingredients or garnish and is an estimate. It may change based on actual ingredients and cooking methods used.

Course Main Course
Cuisine American, Italian

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Slow Cooker Spaghetti Sauce in the pot with writing
Slow Cooker Spaghetti Sauce on spaghetti with writing
bowl of Slow Cooker Spaghetti Sauce with pasta and writing
cooked Slow Cooker Spaghetti Sauce in the pot with writing
Slow Cooker Spaghetti Sauce in the pot and plated with a title
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About the author

I am a wife, mother of two, and professional accountant. I love fantastic food, and it is so often the center of our lives, from everyday dinner, to family gatherings, and special evenings at fabulous restaurants. I have always loved cooking and baking, with my mom and grandma, and now, with my daughter and son. I love trying new recipes while enjoying my favorites too. I’m so happy to share them with you.
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