
Supreme Pizza Casserole brings together the cheesy goodness and bold toppings of a classic supreme pizza with the coziness of a bubbling pasta bake. It is one of those weeknight wonders that gets everyone excited for dinner and fills the kitchen with a familiar pizzeria aroma. After wishing I could eat pizza when making my usual casserole, this delicious mashup became a new family favorite in our home.
My kids always ask for seconds and I have even made a double batch to share with a neighbor who needed some comfort food. The blend of melty cheese and savory toppings is always a big hit.
Ingredients
- Penne pasta: the ridges soak up all the sauce which means every bite is flavorful try to find pasta made with durum wheat for the best texture
- Lean ground beef: adds heartiness and richness choose fresh beef and brown it well for best flavor
- Onion: diced for sweetness and depth sweet or yellow onions bring out the best flavor
- Pizza sauce: the soul of the dish use a robust and tangy sauce with plenty of herbs
- Garlic powder: mixes in easily for flavor without fresh chopping opt for pure garlic powder if possible
- Italian seasoning: a blend of herbs that gives the casserole that classic pizzeria taste
- Shredded mozzarella cheese: gives the gooey top buy whole milk mozzarella and shred it fresh if possible
- Green bell pepper: brings a little crunch and classic pizza color look for bright and firm peppers
- Sliced pepperoni: gives a savory spicy bite choose a good quality pepperoni for the best pop of flavor
- Black olives: the little salty slices balance the richness use pitted and sliced olives packed in water for easiest prep
Step-by-Step Instructions
- Boil the Pasta:
- Fill a large pot with water and bring it to a rolling boil add a generous pinch of salt then pour in the penne noodles cook them just until al dente usually about ten minutes check often so they do not get mushy because they will finish cooking in the oven
- Cook the Beef Mixture:
- Place a large pan over medium heat and add the ground beef break it into small pieces with a spoon as it browns keep cooking until there is no pink left then drain off any excess fat stir in diced onion garlic powder and pizza sauce mix thoroughly until everything is coated and the onions start to soften
- Combine with Pasta:
- Add the drained penne noodles to your beef mixture and gently fold until every piece of pasta is covered with sauce be gentle so you do not break the noodles
- Assemble the Casserole:
- Preheat your oven to three hundred fifty degrees spoon the entire pasta and meat mixture into a lightly greased nine by thirteen inch baking dish use a spatula to spread it evenly
- Add the Toppings:
- Generously cover the casserole with shredded mozzarella arrange slices of pepperoni scatter chopped bell pepper and finish with black olives so every bite gets a little bit of everything
- Bake and Finish:
- Cover the dish with foil and place in the oven bake for about twenty five minutes or until the cheese is melted and bubbling remove the foil and let the casserole sit for about five minutes so it sets before serving

My favorite part is always the first gooey forkful from the corner of the casserole. Last year my oldest insisted on adding extra olives and now it is our signature family tradition each time we make it.
Storage Tips
Keep leftovers covered tightly and store in the refrigerator for three to four days. For longer storage divide the casserole into single portions and freeze in airtight containers. Thaw overnight in the fridge and reheat in the microwave or oven until warmed through for an easy lunch.
Ingredient Substitutions
Feel free to get creative based on what you have on hand. You can use Italian sausage instead of ground beef or add cooked mushrooms for an extra savory touch. Swap green bell pepper for red or yellow for a sweeter flavor. Use turkey pepperoni for a lighter option or try plant-based cheese and veggie crumbles for a dairy free vegetarian version.

Serving Suggestions
This casserole is a meal on its own but it is even better with a crisp green salad and a loaf of garlic bread. For a party spread serve smaller scoops on appetizer plates or let kids build their own bowls with extra toppings like fresh basil or red pepper flakes at the table.
Cultural Context
Supreme Pizza is a pizza parlor classic that usually has a mix of meat and vegetables. This casserole gives you everything you love about that order plus the comfort of a baked pasta meal. It is the kind of dish that gets passed around at potlucks or shared on busy family nights all across America because it hits all the right nostalgic notes.
Commonly Asked Questions
- → What type of pasta works best in this dish?
Penne pasta is ideal as its ridged shape holds sauce and toppings, but you can substitute rigatoni or ziti if preferred.
- → Can I add extra vegetables?
Yes, feel free to include mushrooms, onions, spinach, or any veggie toppings you enjoy for more color and flavor.
- → How should leftovers be stored?
Allow the casserole to cool, then cover tightly and refrigerate for up to 3 or 4 days for maximum freshness.
- → Is it possible to make this dish ahead of time?
Absolutely! Assemble the casserole and refrigerate before baking, then cook as directed when ready to serve.
- → Can I use a different meat or make it vegetarian?
Ground turkey, sausage, or plant-based options can replace beef, or omit the meat entirely and add more vegetables.