Easy Supreme Pizza Casserole
Easy Supreme Pizza Casserole is a kid-friendly casserole full of two kinds of cheese, Italian sausage, bell pepper, mushrooms, black olives, and pepperoni!

- Prep time
- 15 min
- Cook time
- 45 min
- Yield
- 10 servings
- Difficulty
- HARD
Ingredients
Quantities are shown as originally provided.
- 1 lb mild Italian sausage (ground)
- 2 cloves garlic (minced)
- 1 jar marinara sauce ((26 oz))
- 1/2 tsp kosher salt
- 1/4 cup yellow onion (minced)
- 1 green bell pepper (seeded and chopped)
- 8 oz sliced mushrooms
- 1 can sliced black olives ((3.8 oz))
- 1/2 cup pepperoni slices (chopped)
- 16 oz farfalle pasta
- 3 Tbsp unsalted butter
- 3 Tbsp all-purpose flour
- 3 cups half and half
- 8 oz fresh mozzarella (shredded (about 2 cups))
- 1/2 cup Parmesan cheese (grated)
- 1/2 tsp ground black pepper
- 8 oz packaged mozzarella cheese (shredded)
Instructions
- 1
Preheat oven to 350 degrees.
- 2
Place a large skillet over medium-high heat and add sausage and garlic. Break up the sausage using a fork or potato masher and cook for 5-7 minutes or until the sausage is cooked.
- 3
Remove the sausage and garlic mixture with a slotted spoon and place it on paper towels to drain. Leave the drippings in the skillet.
- 4
Combine the sausage mixture with the marinara sauce and salt in a large bowl and set aside.
- 5
Add the onion, bell pepper, and mushrooms to the skillet and sauté for about 5 minutes or until tender. Stir in the sliced olives and pepperoni. Remove the skillet from the heat, and set aside.
- 6
Make the pasta according to the directions on the package for the al dente stage. Drain the pasta and place in a large bowl. Set aside.
- 7
To make the cheese sauce, add butter to a large saucepan or skillet over low heat. When the butter is melted, add flour and whisk until smooth. Cook, constantly whisking for 1 minute. Increase the heat to medium and gradually add in half-and-half, whisking constantly. Cook for 7-10 minutes or until the mixture is thick and bubbly.
- 8
Add the fresh mozzarella cheese, parmesan cheese, and pepper and whisk until the cheese has melted.
- 9
Pour the cheese sauce over the pasta and stir to combine.
- 10
Add the pasta and cheese sauce to a 9x13 baking dish which has been sprayed with non-stick cooking spray. Top with the sausage marinara mixture.
- 11
Sprinkle shredded mozzarella cheese over the casserole and top with the onion, bell pepper, mushroom, olive and pepperoni mixture.
- 12
Bake the casserole for 30 minutes or until the cheese has melted and the sauce is bubbly. Let stand 5-10 minutes before serving.
- 13
Enjoy!