This Supreme Pizza Casserole brings all your favorite pizza flavors into a cozy, baked pasta dish. Loaded with melty mozzarella, savory beef, tangy pizza sauce, and classic toppings like pepperoni, peppers, and olives, it’s a family-friendly dinner that’s easy to prep and sure to satisfy any pizza craving—minus the delivery.
1 pound penne pasta
1 pound lean ground beef
2 tablespoons dried minced onion (or ½ cup fresh chopped yellow onion)
½ tablespoon minced garlic
1 teaspoon Italian seasoning
32 ounces pizza sauce or marinara sauce (Contadina recommended)
2 cups shredded mozzarella cheese
16 slices pepperoni
1 small green bell pepper, seeded and sliced
1 can (4 ounces) sliced black olives
Optional: Add other favorite toppings like mushrooms, sausage, or red pepper flakes.
Preheat and Prep the Dish
Preheat your oven to 350°F (175°C). Lightly spray a 9×13-inch baking dish with non-stick spray and set aside.
Cook the Pasta
Boil the penne pasta according to the package directions until al dente. Drain and set aside.
Brown the Beef
In a large pot, cook the ground beef over medium heat until no longer pink. Drain any excess fat.
Build the Sauce
Add the onion, garlic, Italian seasoning, and pizza sauce to the beef. Stir well to combine, then remove from heat.
Mix with Pasta
Add the cooked pasta to the meat sauce mixture and stir until everything is well coated.
Assemble the Casserole
Transfer the mixture into the prepared baking dish. Top evenly with shredded mozzarella, pepperoni slices, bell pepper, and olives.
Bake the Casserole
Cover the dish with aluminum foil and bake for 25 minutes, or until the cheese is melted and bubbly.
Cool and Serve
Let the casserole sit for about 5 minutes before slicing and serving.
Swap in turkey or chicken for a lighter version.
Use whole wheat or gluten-free pasta for dietary preferences.
Add more veggies like mushrooms, red onions, or spinach for a veggie-loaded variation.
Great for meal prep—store leftovers in the fridge for up to 4 days or freeze for up to 2 months.