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Homemade Italian sausage casserole recipe baked with pasta, marinara, and melted cheese, served in a white dish on a kitchen counter, photographed from above.

Italian Sausage Casserole Recipe

A hearty Italian Sausage Casserole with pasta, marinara, and melted cheese. Perfect weeknight comfort food ready in under an hour.
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Course: Casserole, Dinner, Main Course
Cuisine: Italian-American
Prep Time: 15 minutes
Cook Time: 40 minutes
Resting: 5 minutes
Total Time: 1 hour
Servings: 6 Servings
Calories: 520kcal
Cost: $15

Equipment

  • 1 9x13 inch baking dish Glass/ceramic preferred
  • 1 Large skillet (12-inch) For browning sausage & sauce
  • 1 Wooden spoon For breaking up sausage
  • 1 Large mixing bowl For combining pasta & sauce
  • 1 Aluminum foil To cover while baking
  • 1 Sharp knife & cutting board For dicing veggies

Ingredients

  • 1 pound Italian sausage Sweet or spicy
  • 12 oz Pasta (penne or rigatoni) Slightly undercooked
  • 24 oz Marinara sauce Jarred or homemade
  • 1 cup Ricotta cheese Adds creaminess
  • 2 cups Mozzarella cheese Shredded, divided
  • 0.5 cup Parmesan cheese Grated
  • 1 whole Bell pepper Diced, red or yellow
  • 1 medium Onion Diced
  • 3 cloves Garlic Minced
  • 2 tablespoon Olive oil For sautéing
  • 1 teaspoon Italian herbs Dried (or fresh basil/oregano)
  • Salt & black pepper To taste

Instructions

  • Preheat oven to 375°F. Grease the baking dish. Dice the bell pepper, onion, and garlic.
  • Cook the pasta al dente, 2 minutes less than package instructions. Drain and set aside.
  • In a skillet, brown the sausage over medium heat. Drain excess grease.
  • Sauté onion, bell pepper, and garlic in olive oil until softened.
  • Add marinara sauce and Italian herbs to skillet. Stir in browned sausage. Simmer for a few minutes.
  • In a large mixing bowl, combine the cooked pasta, sausage-sauce mixture, ricotta, and half of the mozzarella.
  • Spread mixture into baking dish. Top with remaining mozzarella and Parmesan. Cover with foil.
  • Bake for 25 minutes. Remove foil and bake another 15 minutes until cheese is golden.
  • Let rest for 5 minutes before serving.

Notes

  • Nutrition information is automatically calculated, so should only be used as an approximation.

Nutrition

Serving: 350g | Calories: 520kcal | Carbohydrates: 45g | Protein: 27g | Fat: 26g | Saturated Fat: 11g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 9g | Cholesterol: 70mg | Sodium: 950mg | Potassium: 580mg | Fiber: 4g | Sugar: 7g | Vitamin A: 950IU | Vitamin C: 20mg | Calcium: 310mg | Iron: 3mg