Slow Cooker Italian Sausage with Peppers and Onions

Mike tried this recipe on February 6, 2022

Still looking for a dish to serve for the big game? Here’s one you can try. It combines you favorite Italian sausage (mild, sweet, or hot) with bell peppers, sweet onions, and a zesty tomato sauce. Best of all, you simply dump it all in a slow cooker and let it simmer all day while you work on other things around the house.

Serve it on toasted hoagie rolls as sandwiches, or over pasta (as shown here). Either way, it’s sure to be a hit!

Adapted from The Hamilton Beach Consumer Test Kitchen

Slow Cooker Italian Sausage with Peppers and Onions

Difficulty: Beginner Prep Time 10 mins Cook Time 6 hrs Total Time 6 hrs 10 mins
Servings: 10
Best Season: Suitable throughout the year


A delicious combination of Italian sausage, peppers, onions, and a tangy tomato sauce. Best of all, it's prepared in a slow cooker so you don't have to fuss over it all day.

Adapted from The Hamilton Beach Consumer Test Kitchen



  1. In a medium bowl combine tomato puree, garlic, sugar, oregano, salt, black pepper, and red pepper flakes. Mix thoroughly.

  2. In a 6 quart slow cooker place sliced bell peppers and onions, then top with Italian sausage. Pour tomato mixture on top and stir to coat evenly.

  3. Cook on High for 3-4 hours or Low for 6-8 hours. Garnish with basil before serving.

Nutrition Facts

Servings 10

Amount Per Serving
Calories 590kcal
% Daily Value *
Total Fat 42g65%
Saturated Fat 14g70%
Cholesterol 128mg43%
Sodium 1700mg71%
Potassium 413mg12%
Total Carbohydrate 14g5%
Dietary Fiber 2g8%
Sugars 9g
Protein 34g68%

Calcium 7 mg
Iron 16 mg

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.


  • Servings assume there are 10 sausages (5 per 1 lb package)
  • Serving suggestions:
    • Over pasta (pictured on the recipe card)
    • Slice the sausages and serve on toasted hoagie rolls as sandwiches
  • Mild, sweet, or hot Italian sausage may be used.
Keywords: Italian sausage, bell pepper, sweet onion, tomato sauce, pasta, hoagie, sandwich
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