This easy cheesy pizza casserole recipe combines tender al dente pasta, savory ground beef or Italian sausage, pizza sauce, diced tomatoes, pepperoni, and plenty of melted mozzarella in one family-friendly dinner. It takes about 15 minutes to prepare and 25–30 minutes to bake, making six hearty servings in roughly 40–45 minutes.
Every forkful tastes like a comforting pepperoni pizza with the saucy, satisfying texture of baked pasta. The bubbling mozzarella, lightly crisp pepperoni, tender vegetables, and Italian-seasoned tomato sauce make this casserole a dependable choice for busy weeknights, casual gatherings, and make-ahead dinners.
Jump to RecipeWhy You’ll Love This Recipe
Pizza night and pasta night come together in this cozy baked casserole. It has the familiar flavors of a favorite slice, but the pasta makes each serving especially filling and easy to scoop onto plates.
The recipe uses simple grocery-store ingredients and a straightforward skillet-to-oven method. You can prepare the sauce while the pasta cooks, then combine everything in one baking dish for a dinner that feels generous without creating a complicated kitchen project.
It is also flexible enough for different preferences. Choose lean ground beef for a classic savory flavor, or use Italian sausage when you want more spice and seasoning in the sauce.
If you enjoy hearty, shareable recipes, you may also like these layered casserole ideas for another comforting dinner option.
Ingredients You’ll Need
Start with 12 ounces of rotini or penne pasta. Short, ridged shapes are especially good because they hold onto the tomato sauce, bits of meat, and melted cheese.
- Meat: Use 1 pound of lean ground beef or Italian sausage.
- Vegetables: One small diced onion, one small diced green bell pepper, and two minced garlic cloves add savory flavor and color.
- Sauce: A 14–15 ounce jar of pizza sauce and one drained 14–15 ounce can of diced tomatoes create a rich, spoonable mixture.
- Seasoning: Italian seasoning, salt, and black pepper keep the flavor balanced.
- Cheese and toppings: Two cups of shredded mozzarella, one-half cup of sliced pepperoni, and one-quarter cup of grated Parmesan finish the casserole.
The mozzarella is divided so that some melts into the pasta mixture and the rest forms a golden blanket on top. Parmesan is optional, but it adds a salty finish and helps the surface brown attractively.
How to Make It Step-by-Step
Step 1: Heat the oven to 375°F and grease a 9-by-13-inch baking dish. Having the dish ready before you begin means the casserole can go straight into the oven as soon as it is assembled.
Step 2: Cook the rotini or penne in salted water until just al dente, following the package directions. Drain it well, since excess water can thin the sauce and make the finished casserole less cohesive.
Step 3: While the pasta cooks, brown the ground beef or Italian sausage in a large skillet over medium-high heat. Break the meat into small crumbles as it cooks, then drain excess fat before adding the vegetables.
Step 4: Add the diced onion and green bell pepper to the skillet. Cook for 3–4 minutes, until they begin to soften, then stir in the garlic and cook for 30 seconds so it becomes fragrant without scorching.
Step 5: Stir in the pizza sauce, drained diced tomatoes, Italian seasoning, salt, and black pepper. Let the mixture simmer for 3–5 minutes, giving the flavors time to mingle while keeping the sauce moist.
Step 6: Combine the drained pasta, meat sauce, sliced pepperoni, and 1 cup of shredded mozzarella in a large bowl or directly in the skillet if it is roomy enough. Fold gently until the sauce coats the pasta and the cheese is evenly distributed.
Step 7: Transfer the mixture to the greased 9-by-13-inch baking dish and spread it into an even layer. Sprinkle the remaining 1 cup of mozzarella over the top, followed by the Parmesan and additional pepperoni if desired.
Step 8: Cover the dish with foil and bake for 15 minutes. Remove the foil and continue baking for another 10–15 minutes, until the casserole is hot, bubbling, and lightly browned.
Step 9: Let the casserole rest for 5 minutes before serving. This short pause helps the sauce settle so each scoop stays together while the cheese remains pleasantly stretchy.
Chef’s Tips for the Best Pizza Casserole
The most important detail is stopping the pasta at al dente. Fully softened pasta may become mushy during the 25–30 minutes it spends baking with the sauce.
Drain both the pasta and diced tomatoes well. The sauce should be rich and spoonable rather than watery, and a thorough drain helps the casserole bake into a satisfying sliceable scoop.
For a stronger pizza-shop flavor, use a combination of mozzarella and provolone. You can also add sliced mushrooms, olives, cooked sausage, or banana peppers, while keeping the main sauce and pasta quantities the same.
Watch the cheese during the uncovered portion of baking. If it browns too quickly, loosely cover the casserole with foil for the remainder of the final baking period.
For a fun appetizer pairing, serve small portions with easy air fryer meatballs. Their savory flavor fits naturally beside this Italian-inspired dinner.
Serving Suggestions
Serve the casserole hot after its five-minute rest, with a crisp green salad or steamed vegetables on the side. Garlic bread is another welcome addition because it is perfect for catching the extra tomato sauce around the edges of the plate.
A sprinkle of Parmesan at the table adds a final savory note. If your family likes heat, offer red pepper flakes or banana peppers separately so everyone can customize their serving.
This dish is substantial enough to stand alone, but a bright side gives the meal a fresh contrast. For another colorful, pizza-inspired idea later in the week, try this watermelon fruit pizza as a playful dessert or snack.
Storage and Reheating
Cool leftover casserole promptly, then cover it and refrigerate it. Reheat individual portions until hot, using a microwave or a covered oven-safe dish in the oven.
When reheating in the oven, keep the casserole covered so the pasta does not dry out. Remove the cover briefly at the end if you want the cheese on top to become bubbly again.
For meal planning, assemble the casserole in its baking dish, cover it, and refrigerate it until you are ready to bake. Since chilled food may need additional time to heat through, check that the center is hot and bubbling before serving.
Easy Variations
Ground beef gives this casserole a familiar cheeseburger-pizza character, while Italian sausage brings a more pronounced herb and spice profile. Either option works with the listed pizza sauce, tomatoes, pepperoni, and mozzarella.
To make the topping extra bold, combine mozzarella with provolone and add a few more pepperoni slices before baking. Mushrooms, olives, green peppers, and banana peppers can all bring classic pizza-shop variety to the dish.
If you are planning a spread of comfort-food favorites, consider adding hot pepper jelly on the side for a sweet-spicy accent with appetizer bites. Finish the meal with cake batter fudge for a simple sweet treat.
Easy Cheesy Pizza Casserole
Ingredients
Method
- Heat the oven to 375°F and grease a 9-by-13-inch baking dish.
- Cook the pasta in salted water until just al dente according to the package directions. Drain it well.
- Meanwhile, brown the ground beef or Italian sausage in a large skillet over medium-high heat. Drain any excess fat.
- Add the diced onion and green bell pepper to the skillet, cooking for 3–4 minutes until they begin to soften. Add the minced garlic and cook for 30 seconds.
- Stir in the pizza sauce, drained diced tomatoes, Italian seasoning, salt, and black pepper. Simmer for 3–5 minutes.
- Combine the cooked pasta, meat sauce, pepperoni, and 1 cup of mozzarella.
- Transfer the mixture to the greased baking dish. Sprinkle the remaining mozzarella, Parmesan, and extra pepperoni over the top.
- Cover with foil and bake for 15 minutes. Uncover and bake for another 10–15 minutes, until hot, bubbling, and lightly browned.
- Let the casserole rest for 5 minutes before serving.
Notes
Final Thoughts
This easy cheesy pizza casserole delivers the best parts of pizza in a warm, saucy pasta bake that feeds six. With a 15-minute prep time, a short simmer, and 25–30 minutes in the oven, it is a practical dinner that still feels special when it reaches the table.
Keep the pasta al dente, divide the mozzarella as directed, and give the finished casserole five minutes to rest. Then scoop up the bubbling layers of seasoned sauce, tender pasta, pepperoni, and golden cheese for a comforting meal everyone can enjoy.