Italian Sausage Spaghetti Sauce

RECIPE BY: San

DATE: January 12, 2026

Total Time 6 hours 10 minutes

This post may include affiliate links that earn us a small commission from your purchases at no extra cost to you.

Italian Sausage Spaghetti Sauce is both delicious and easy to make, with savory Italian sausage adding incredible flavor to this quick, homemade slow cooker sauce.

Italian Sausage Spaghetti Sauce over noodles on plate

This recipe for slow cooker spaghetti sauce is extraordinary because it only requires a few simple ingredients, and the flavor is incredible.

I have the best memories of my Aunt Dana making this spaghetti sauce. We always had it at her annual Creative Memories crop day, and half the reason we went was for the spaghetti! We’d wait all day for this dinner, smelling the sauce as it simmers in the crock pot.

This is a must-try recipe that’s easy to make. It makes a lot, so if you’re serving a small group or family, I recommend halving the recipe.

The best part of this spaghetti dish is how easy it is to whip up, and the taste comes naturally from the Italian sausage used in the sauce.

Italian Sausage Spaghetti Sauce in slow cooker with ladle

how to make slow cooker Italian sausage spaghetti sauce

In your crock pot, add the following sauce ingredients: tomato sauce, crushed tomatoes, tomato paste, dried parsley, sweet fennel, garlic powder, onion powder, and sugar. Add salt & pepper and white wine to taste. Stir all ingredients together until they are well combined.

overhead shot of seasonings for spaghetti sauce

After adding the Italian Sausages to the sauce, leave them whole until they have cooked before cutting them up.

overhead shot of italian sausages in sauce in slow cooker

Turn the crockpot to high and cook the sauce for 4-6 hours. Once the sausages are tender, remove them from the sauce and cut them into 1-inch chunks. See the example below:

cooked italian sausage sauce in slow cooker

Finally, add the sausage pieces back into the sauce and turn the slow cooker to low. Let it simmer until you’re ready to serve. You can either dish this up immediately or wait another hour before shifting the crock pot to warm.

italian sausage spaghetti sauce with noodles in bowl

Recipe Tips

  • Can you cook raw sausage in spaghetti sauce? You can Italian sausage directly in a sauce if you let the sauce simmer until the meat is cooked through. You
  • You can also boil the raw sausages in water for a few minutes first, which helps reduce excess grease before adding them to the sauce.
  • How long does spaghetti sauce with sausage last in the fridge? Tomato-based sauces can last up to a week in the fridge if they don’t contain meat, and only 3-4 days if they do.
italian sausage sausage with noodles on plate

Pair this With…

italian sausage spaghettis sauce in bowl with noodles

More Slow Cooker recipes we love

Check out all Dash of Sanity crockpot recipes here! Find my 50 Favorite Slow Cooker Recipes here.

Slow Cooker French Onion Pork Chops
Slow Cooker Chicken Tikka Masala
Slow Cooker Chile Verde

Pin to pinterest.

collage image of italian sausage spaghetti sauce with recipe title

Italian Sausage Spaghetti Sauce

Prep: 10 minutes
Cook: 6 hours
Total: 6 hours 10 minutes
Servings: 12
Calories: 463 kcal
Delicious and flavorful this recipe Italian Sausage Spaghetti Sauce is made with simple ingredients and easy it is easy to put together.

Ingredients
 

  • 3 pounds Canino’s Mild Italian Sausage this is worth ordering from Denver, CO http://www.caninosausage.com/
  • 2-29 ounce cans tomato sauce
  • 29 ounces crushed tomatoes
  • 8 ounces tomato paste
  • 3 tablespoons dried parsley
  • 3 tablespoons sweet fennel
  • 1 tablespoon garlic powder
  • 1 tablespoon onion powder
  • 1 tablespoon salt
  • 2-3 tablespoons sugar
  • 2 teaspoons pepper
  • 3/4 cup white wine

Instructions
 

  • In your crock pot, add the following sauce ingredients: tomato sauce, crushed tomatoes, tomato paste, dried parsley, sweet fennel, garlic powder, onion powder, and sugar. Add salt & pepper and white wine to taste. Stir all ingredients together until they are well combined.
    Now add in the sausages and cover with the sauce, if desired. Cover with lid.
  • Turn the crockpot to high and cook the sauce for 4-6 hours. Once the sausages are tender, remove them from the sauce and cut them into 1-inch chunks. See the example above in the text.
  • Finally, add the sausage pieces back into the sauce and turn the slow cooker to low. Let it simmer until you're ready to serve. You can either dish this up immediately or wait another hour before shifting the crock pot to warm.

Calories: 463kcalCarbohydrates: 14gProtein: 19gFat: 36gSaturated Fat: 13gPolyunsaturated Fat: 5gMonounsaturated Fat: 16gCholesterol: 86mgSodium: 1678mgPotassium: 761mgFiber: 3gSugar: 8gVitamin A: 470IUVitamin C: 14mgCalcium: 81mgIron: 3mg

Tried this recipe?Let us know what you think!

Similar Posts

4.78 from 9 votes (4 ratings without comment)

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating




15 Comments

  1. I like cooking the sausage a little more with the sauce instead of precooking it. Not as healthy, but it’s seriously like liquid meat – absolutely delicious.

  2. The recipe directions don’t tell you when/how to put in the raw sausage. In the bottom? Sauce on top? Please fix the recipe . Thanks.