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Italian Sausage And Pepper Casserole

This Italian Sausage and Pepper Casserole is a bold, colorful dish with savory sausage, sweet peppers, and melty mozzarella—perfect for quick dinners or meal prep.
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Ingredients
  

  • 1 pound Italian sausage
  • 1 onion diced
  • 1 red bell pepper sliced
  • 1 green bell pepper sliced
  • 1 yellow bell pepper sliced
  • 2 cloves garlic minced
  • 1 can diced tomatoes
  • 1 cup shredded mozzarella cheese
  • Salt and pepper to taste

Instructions
 

  • Set your oven to 375°F (190°C) and let it heat while you prep the filling.
  • In a large skillet over medium heat, cook Italian sausage until browned, about 7–8 minutes. Break it up with a spoon and drain excess fat.
  • Stir in diced onion, sliced bell peppers (red, green, yellow), and minced garlic. Cook for 5–7 minutes, stirring occasionally, until soft and slightly caramelized.
  • Add diced tomatoes with juice. Stir to combine. Season with salt and pepper. Simmer for 2–3 minutes.
  • Spread the sausage and pepper mixture evenly in a 9x13-inch casserole dish.
  • Sprinkle shredded mozzarella over the top. Bake uncovered for 20–25 minutes until melted and golden. Let rest for 5 minutes before serving to help it set.