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Slow cooker sausage and peppers with Italian sausage, onions, and colorful bell peppers in rich tomato sauce.

Slow Cooker Sausage & Peppers

This Slow Cooker Sausage & Peppers recipe is an easy comfort food dinner packed with juicy Italian sausage, colorful bell peppers, sweet onions, garlic, and rich tomato sauce. Everything cooks low and slow in the crockpot until tender and full of bold flavor. Perfect for busy weeknights, meal prep, sandwiches, pasta nights, or cozy family dinners.
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Prep Time 15 minutes
Cook Time 6 hours
Servings: 6
Course: 30-Minute Dinner
Cuisine: Italian-American
Calories: 420
Ingredients Method

Ingredients
  

  • 2 lbs Italian sausage links sweet, spicy, or mixed
  • 3 bell peppers sliced
  • 1 large onion sliced
  • 4 garlic cloves minced
  • 1 28 oz can crushed tomatoes
  • 2 tablespoons tomato paste
  • 1 teaspoon Italian seasoning
  • 1/2 teaspoon red pepper flakes
  • Salt and black pepper to taste
  • 2 tablespoons olive oil
  • Fresh parsley chopped (for garnish)

Method
 

  1. Brown the Sausage
  2. Heat olive oil in a skillet over medium heat. Brown the sausage links for 2–3 minutes per side until golden. Transfer to the slow cooker.
  3. Add Vegetables and Sauce
  4. Place sliced peppers and onions into the slow cooker. Add garlic, crushed tomatoes, tomato paste, Italian seasoning, red pepper flakes, salt, and black pepper.
  5. Slow Cook
  6. Cover and cook:
  7. LOW for 6–7 hours
  8. HIGH for 3–4 hours
  9. The sausage should be fully cooked and the peppers tender.
  10. Garnish and Serve
  11. Top with fresh parsley before serving.
  12. Serve with hoagie rolls, pasta, mashed potatoes, rice, or polenta.