How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Slow Cooker Italian Sausage?

You need 12 ingredients. The key ingredients include: 5 lbs Italian sausage, in casings, 4 large green peppers, sliced, 3 large onions, sliced, 1 -2 garlic clove, minced, and more.

Is Slow Cooker Italian Sausage suitable as meat & poultry?

Yes, Slow Cooker Italian Sausage falls under the Meat & Poultry category and is a great choice for this type of meal.

How do I store leftover Slow Cooker Italian Sausage?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Slow Cooker Italian Sausage Recipe

Name: Slow Cooker Italian Sausage
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 5 lbs Italian sausage, in casings; 4 large green peppers, sliced; 3 large onions, sliced; 1 -2 garlic clove, minced; 28 ounces tomato puree; 14 ounces tomato sauce; 12 ounces tomato paste; 1 tablespoon dried oregano; 1 tablespoon dried basil; 1/2 teaspoon garlic powder; 1 1/2 teaspoons salt; 2 teaspoons sugar

Try this homemade Slow Cooker Italian Sausage recipe the whole family will love. Made with Italian sausage, green peppers, onions and garlic. Easy step-…

This Slow Cooker Italian Sausage relies on simple, everyday ingredients such as italian sausage, in casings, large green peppers, sliced, large onions, sliced and garlic clove, minced. It comes together quickly and makes 4 servings, at about 189 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Meat & Poultry

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Slow Cooker Italian Sausage

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions