Italian Sausage and Pepper Casserole

Introduction:
This Italian Sausage and Pepper Casserole is a deliciously hearty dish that combines savory sausage, sweet bell peppers, and melty cheese all baked to perfection. The flavors meld together in a comforting, satisfying casserole that’s perfect for any occasion—whether you’re craving a weeknight dinner or preparing for a family meal.

Ingredients
For the Casserole:

1 lb Italian sausage (mild or spicy, depending on your preference)
2 tablespoons olive oil (for sautéing)
2 bell peppers, sliced (red and green work well)
1 large onion, sliced
2 cloves garlic, minced
1 can (14.5 oz) diced tomatoes (with Italian seasoning, or regular if you prefer)
1/2 cup marinara sauce (optional, for extra depth)
1/2 teaspoon dried oregano
1/2 teaspoon dried basil
1/4 teaspoon red pepper flakes (optional, for heat)
Salt and pepper, to taste
1 1/2 cups shredded mozzarella cheese
1/2 cup grated Parmesan cheese
For the Optional Topping:

Fresh basil or parsley, chopped (for garnish)
How to Make
Cook the Sausage: