Go Back Email Link
+ servings
A close up picture of the finished Pizza Casserole on a serving spoon.
Print Recipe
5 from 3 votes

Pizza Casserole

This Pizza Casserole recipe is loaded with rotini pasta, pizza toppings, and plenty of melted mozzarella cheese. It's a family favorite that's easy to make and feeds a crowd!
Prep Time10 mins
Cook Time30 mins
Cooling Time5 mins
Total Time45 mins
Course: main dish
Cuisine: American
Keyword: casserole, pasta, pepperoni
Servings: 8 people
Calories: 631kcal
Cost: $14.10


  • 13x9-inch baking dish
  • measuring cups
  • medium pot
  • large skillet
  • cutting board
  • chef's knife
  • large mixing bowl
  • Colander


  • 1 pound rotini pasta
  • 1 pound Italian sausage or ground beef
  • ½ cup yellow onion finely diced
  • 2 large cloves garlic minced
  • 1 Tablespoon Italian seasoning
  • 24 ounce jar marinara sauce
  • 1 cup pepperoni mini or regular size, divided
  • ½ cup grated parmesan
  • 2 cups grated mozzarella cheese divided
  • ½ cup chopped green bell pepper
  • 4 ounce can sliced mushrooms drained
  • 2.25 ounce can sliced black olives drained


  • fresh chopped parsley
  • fresh chopped basil



  • Move the oven rack to the middle position and preheat the oven to 350 degrees F.
  • Spray a 13x9 baking dish with cooking spray.


  • Cook the pasta according to the box directions, drain.
  • Meanwhile, in a large skillet cook Italian sausage over medium heat.
  • Just before the sausage is completely cooked, add onion and cook for about 3-4 minutes.
  • If you are adding green pepper, add in with the onion and cook until softened.
  • Add garlic and Italian seasoning and continue cooking for 1 minute until fragrant.
  • Remove from heat and drain grease off if necessary.


  • Add meat to a large bowl.
  • Pour in pasta sauce and ¾ cup of pepperoni.
  • Add in mushroom and olives, if using.
  • Stir to combine well.
  • Add drained pasta and stir to combine.
  • Add about ½ of the pasta mixture to the prepared baking dish.
  • Sprinkle ½ of the Parmesan cheese and ½ of the mozzarella cheese to the top.
  • Repeat with the remaining pasta and cheese.
  • Add the remaining pepperoni to the top.


  • Bake for 25-30 minutes or until bubbly and the cheese is melted.


  • Remove the casserole from the oven and let it sit for about 5 minutes before serving.
  • Serve with additional parsley and basil if desired.


Serving: 1.5cups | Calories: 631kcal | Carbohydrates: 51g | Protein: 29g | Fat: 34g | Saturated Fat: 14g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 14g | Trans Fat: 1g | Cholesterol: 86mg | Sodium: 1569mg | Potassium: 683mg | Fiber: 4g | Sugar: 7g | Vitamin A: 688IU | Vitamin C: 16mg | Calcium: 267mg | Iron: 3mg