This pizza casserole recipe turns familiar pizza flavors into a hearty, family-friendly dinner with tender egg noodles, savory ground beef, pepperoni, vegetables, rich pizza sauce, and bubbling mozzarella. It is simple to assemble, dependable, and ideal for busy weeknights.

When you want pizza night flavors without shaping dough or waiting on delivery, this casserole is a practical alternative. The combination of beef, pepperoni, onion, green bell pepper, and garlic gives every scoop plenty of savory flavor, while egg noodles make the dish filling enough for dinner.
The method is straightforward, too. You cook the noodles, brown the meat and vegetables, stir everything together with sauce and a small amount of milk, then let the oven bring the flavors together. Adding mozzarella near the end keeps the cheese soft, melted, and appealing instead of letting it overcook.
Because most of the preparation happens before the casserole reaches the oven, it is also a convenient choice when you need a comforting meal that does not require constant attention at the stove.
Pizza Casserole Recipe Ingredients
Egg noodles: These create the tender, substantial base of the casserole and hold onto the pizza sauce nicely.
Lean ground beef: Adds a savory, meaty element that makes the casserole filling enough to serve as a main dish.
Pepperoni: Brings the recognizable seasoned flavor you expect from a classic pepperoni pizza. Regular slices work well, while mini pepperoni can give you more pepperoni throughout each serving.
Pizza sauce: Coats the noodles and meat while supplying the tomato-forward flavor that ties the casserole to traditional pizza.
Mozzarella cheese: Freshly grated mozzarella melts smoothly over the surface and creates the bubbling cheese layer that finishes the dish.
Green bell pepper: Adds freshness, color, and a mild pepper flavor that balances the richer beef and pepperoni.
Onion: Cooking the chopped onion with the beef softens its texture and develops a savory base for the filling.
Fresh garlic: A couple of minced cloves give the beef mixture more depth and make the pizza sauce taste more aromatic.
Whole milk: A small amount loosens the sauce slightly and gives the finished noodle mixture a richer consistency.

How to Make This Pizza Casserole
STEP 1: Bring a large pot of lightly salted water to a boil and add the egg noodles. Cook them for about 7 to 9 minutes, stopping when they are tender but still have a slight firmness. Drain the noodles thoroughly so excess water does not thin the casserole sauce.
STEP 2: While the noodles cook, preheat your oven to 350°F (175°C). Have a 2-quart casserole dish ready so the assembled mixture can go directly into the oven.
STEP 3: Place the ground beef in a medium skillet over medium-high heat along with the chopped onion, green bell pepper, and freshly minced garlic. Break the beef into small pieces as it cooks. Continue for roughly 5 to 7 minutes, until no pink remains and the vegetables have started to soften. Drain excess fat if necessary.
STEP 4: Add the drained egg noodles to the cooked beef mixture. Pour in the pizza sauce and milk, then add the sliced pepperoni. Stir gently but thoroughly so the noodles are evenly coated and the meat, vegetables, and pepperoni are distributed throughout.
STEP 5: Transfer the mixture into your casserole dish and spread it into an even layer. Bake uncovered for about 20 minutes. This first baking period heats the filling completely and gives the noodles time to absorb some of the savory sauce.
STEP 6: Carefully remove the casserole from the oven and scatter the freshly grated mozzarella evenly over the top. Return it to the oven for another 5 to 10 minutes, or until the cheese has melted completely and is visibly bubbling around the surface.
STEP 7: Allow the casserole to rest briefly before serving. Even five minutes of cooling helps the filling settle slightly, making it easier to scoop onto plates without losing all of the sauce and melted cheese.
Helpful Tips
- Avoid overcooking the egg noodles during boiling. Since they continue heating in the oven, slightly firm noodles are less likely to become overly soft in the finished casserole.
- Drain the browned beef well if it releases a noticeable amount of fat. Removing that excess keeps the pizza sauce from becoming greasy.
- Grate the mozzarella shortly before using it if possible. Freshly grated cheese generally melts more smoothly and evenly across the casserole.
Can I assemble pizza casserole ahead of time?
Yes. You can cook the noodles and beef mixture, assemble everything except the mozzarella topping, and refrigerate the covered casserole until you are ready to bake it. Add the cheese toward the end of baking as directed. A refrigerated casserole may need a little additional oven time because the filling starts cold.
What kind of noodles work well in pizza casserole?
Egg noodles are especially good here because their broad shape catches plenty of pizza sauce and they stay pleasantly tender after baking. Cook them only until just tender before assembling the casserole so they do not become too soft while baking.
Can I use mini pepperoni instead of regular pepperoni?
Absolutely. Mini pepperoni works particularly well because the smaller pieces distribute throughout the casserole, giving you a little pepperoni in more bites. Regular sliced pepperoni is equally suitable, so you can simply use whichever version you already have available.
How do I know when the casserole is finished baking?
The filling should be thoroughly hot, and the mozzarella on top should be completely melted and bubbling. Because the beef and noodles are already cooked before assembly, the oven is mainly heating the casserole through, combining the flavors, and melting the cheese.

Perfect Pairings
A simple green salad makes an excellent side because its fresh, crisp texture contrasts nicely with the warm noodles, meat, pepperoni, and melted cheese. A lightly dressed salad is all you need alongside such a filling main course.
Roasted or steamed vegetables are another practical option. Vegetables provide a lighter accompaniment without competing with the strong pizza-inspired flavors of the casserole.
For something more substantial, serve the casserole with warm garlic bread. It is especially useful for picking up any extra pizza sauce left on the plate and turns the meal into a satisfying comfort-food dinner.
How to Store & Reheat
Allow leftover pizza casserole to cool before transferring it to an airtight container or covering the casserole dish securely. Store it in the refrigerator for about 3 to 4 days. Keeping it tightly covered prevents the noodles and mozzarella from drying out.
For individual portions, reheating in the microwave is usually the quickest method. Heat a serving until it is hot throughout, checking the center before eating. If the noodles seem a little dry after refrigeration, covering the portion while reheating helps retain moisture.
For larger amounts, place the casserole in an oven-safe dish, cover it, and warm it at about 350°F until heated through. You can uncover it during the final few minutes if you want the cheese on top to become softer and more freshly melted.
The casserole can also be frozen for longer storage. Place cooled portions in freezer-safe containers and freeze them for up to 2 to 3 months. Thaw overnight in the refrigerator before reheating for the most even results.
With its tender noodles, seasoned beef, pepperoni, vegetables, tomato-rich sauce, and melted mozzarella, this casserole gives you the flavors of a classic pizza in a warm, scoopable dinner. It is straightforward enough for a regular weeknight but satisfying enough to bring to the table whenever you are craving a hearty baked meal.

Pizza Casserole Recipe
Ingredients
For the Casserole:
- 16 ounces pizza sauce
- 2 cloves fresh garlic finely minced
- ½ pound lean ground beef
- ¼ cup whole milk
- 1 green bell pepper chopped
- 2 cups uncooked egg noodles
- 1 onion chopped
- 1 cup sliced pepperoni with mini pepperoni suitable for added texture
For the Topping:
- 1 cup freshly grated mozzarella cheese
Instructions
- Bring a large pot of lightly salted water to a full boil. Add the egg noodles and cook for approximately 7–9 minutes, or until tender while still slightly firm when bitten. Drain thoroughly and set aside.
- While the noodles are cooking, heat the oven to 350°F (175°C).
- Place a medium skillet over medium-high heat. Add the lean ground beef, chopped onion, green bell pepper, and minced garlic. Cook while stirring and breaking apart the meat for 5–7 minutes, until the beef is browned and crumbly.
- Drain away any excess fat from the skillet.
- Add the cooked egg noodles, pizza sauce, sliced pepperoni, and milk to the skillet containing the beef mixture. Stir thoroughly until all ingredients are evenly incorporated.
- Transfer the mixture to a 2-quart casserole dish and distribute it evenly.
- Place the casserole in the preheated oven and bake for 20 minutes.
- Remove or pull out the dish sufficiently to scatter the grated mozzarella evenly over the surface. Return the casserole to the oven and bake for another 5–10 minutes, until the mozzarella is fully melted and bubbling.
- Remove the finished casserole from the oven and allow it to cool slightly before serving.
Notes
- Mini pepperoni may be used for a more varied texture.
- Freshly minced garlic provides the best flavor.
- Whole milk contributes additional richness.
- Freshly grated mozzarella melts especially well.
