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A spoon serving up a portion of pizza casserole.

Pizza Casserole

This pizza casserole is pasta simmered in tomato sauce with pepperoni, sausage, olives and bell peppers, then topped with cheese and baked to golden brown perfection. A family friendly dinner option that always gets rave reviews!
Course Main
Cuisine American
Keyword pizza casserole
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings 6
Calories 470kcal
Author Sara Welch


  • 2 teaspoons olive oil
  • 1 lb mild Italian sausage casings removed
  • 1/2 cup onion finely diced
  • 1/2 cup green bell pepper diced
  • 1 cup mushrooms sliced
  • 3/4 cup mini pepperoni divided use
  • 1/2 cup black olives sliced
  • 1 teaspoon minced garlic
  • 24 ounce jar marinara sauce
  • 3 1/4 cups water
  • salt and pepper to taste
  • 12 ounces short pasta such as corkscrew, rotini or penne
  • 1 1/2 cups shredded mozzarella cheese
  • 1 tablespoon chopped parsley
  • cooking spray


  • Heat the olive oil in a large, deep pot over medium heat. Add the sausage and cook for 4-5 minutes, breaking up the meat with a spatula, until browned.
  • Add the onion, green bell pepper and mushrooms to the pot. Cook for 5-6 minutes or until vegetables are tender.
  • Add 1/2 cup of the pepperoni, olives and the garlic, and cook for 1 minute.
  • Add the marinara sauce, water, salt, pepper and pasta to the pot and bring to a simmer. 
  • Cover the pot and cook over low heat for 12-14 minutes or until pasta is tender.
  • While the pasta is simmering, preheat the oven to 400 degrees F.
  • Coat a 3 quart baking dish with cooking spray.
  • After the pasta is finished cooking, pour the mixture into the baking dish.
  • Sprinkle the cheese over the top and arrange the remaining 1/4 cup of pepperoni on the cheese.
  • Bake for 10-15 minutes or until cheese is melted. Sprinkle with parsley and serve.



Calories: 470kcal | Carbohydrates: 50g | Protein: 29g | Fat: 28g | Saturated Fat: 14g | Cholesterol: 94mg | Sodium: 780mg | Potassium: 773mg | Fiber: 3g | Sugar: 7g | Vitamin A: 680IU | Vitamin C: 10.5mg | Calcium: 191mg | Iron: 3.1mg