Italian Sausage and Pepper Casserole
This Italian Sausage and Pepper Casserole is a hearty, comforting baked dinner made with juicy Italian sausage, tender bell peppers, onions, and a rich tomato sauce, finished with melted mozzarella. Easy to prepare and perfect for busy weeknights or meal prep.
Equipment
- large skillet
- baking dish
- cutting board
- knife
- Oven
Ingredients
- 1 lb Italian sausage (sweet or spicy)
- 2 bell peppers (red and green), sliced
- 1 medium onion, chopped
- 3 cloves garlic, minced
- 14.5 oz diced tomatoes, canned
- 8 oz tomato sauce
- 1 tsp Italian seasoning
- salt, to taste
- black pepper, to taste
- 1 cup shredded mozzarella cheese
Instructions
- Preheat the oven to 375°F (190°C).
- In a large skillet over medium heat, brown the Italian sausage, breaking it apart as it cooks.
- Add the bell peppers, onion, and garlic to the skillet. Cook until vegetables are softened.
- Stir in the diced tomatoes, tomato sauce, Italian seasoning, salt, and black pepper until well combined.
- Transfer the mixture to a baking dish and spread evenly.
- Top evenly with shredded mozzarella cheese and bake uncovered for 25–30 minutes until bubbly and golden.
- Remove from the oven and let rest for 5 minutes before serving.
Notes
Let the casserole rest for 5 minutes before serving so it sets nicely. This dish tastes even better the next day as the flavors deepen. Both sweet and spicy Italian sausage work well, depending on your heat preference.