Pepperoni Pizza Spaghetti Casserole
So much cheesy goodness, spicy pepperoni flavor and delicious sauce coated noodles in this incredible spaghetti pizza casserole. So if you’re looking for a quick dish that’s perfect for busy weeknights or a weekend dinner party or anything in between, this Pepperoni Pizza Spaghetti Casserole brings it all together for a hearty meal anytime!

Why You’ll Love This Pepperoni Pizza Spaghetti Casserole
This spaghetti pizza casserole can be made with 5 ingredients or less. I usually add some garlic and onion to the tomato sauce, a little salt & pepper to taste, but those ingredients are not necessary to make this taste great on it’s own.
It also depends on if you use spaghetti sauce or regular tomato sauce. If I use spaghetti sauce, I purchase one with flavors already in it like a 3+ cheese, or Italian Seasoning. We also use white sauce sometimes in conjunction or separately in this casserole. No matter which you use, it’s incredibly awesome.
What 5 Ingredients make up this Pepperoni Pizza Spaghetti Casserole
- cooked spaghetti noodles
- pasta sauce
- sour cream
- mozzarella cheese
- pepperoni

Add In’s for this Spaghetti Pizza Casserole
- fresh herbs like oregano or basil.
- add some crumbled sausage for more flavor
- add some crumbled ground beef for more flavor
- try different types of cheese, not just traditional pizza cheese
- if you like fresh vegetables like jalapenos or bell peppers, add those to the casserole
- freshly diced onions, garlic, etc.
- parmesan cheese or any other type
- Add sliced mushrooms, diced olives, etc.
- Add absolutely any of your favorite pizza toppings to this casserole for added flavor and to make it your own.
To change it up even further, or make it an entirely different dish try these combinations:
Buffalo Chicken Pizza Casserole
- Swap the red sauce for white sauce and add about 1/4 cup (or more) of buffalo hot sauce to the white sauce mixture.
- Swap the pepperoni for shredded chicken
Chicken Alfredo Pizza Casserole
- Swap the red sauce for a white alfredo sauce
- Swap the pepperoni for shredded chicken
How to store this Pepperoni Pizza Spaghetti Casserole and Leftovers
Our family is big (seven of us), so we make a huge casserole baking dish full. Not just a 9×13 but I’ve adapted this recipe to fit a regular 9×13 so you can make it for your smaller family.
You can also double the recipe and make as much as we did. Fit in 2 casserole dishes and you have one you can freeze or give to a friend!
Freezer Instructions
If you have leftovers, store individual servings in a freezer safe airtight container for up to six months. Remove from freezer and microwave for 2 1/2 minutes, stirring and then return to microwave for another 2 1/2 minutes or so. After 5 minutes, add 1 minute increments until hot throughout.
If you prepare an extra casserole, it can go from freezer to oven. Bake at 350 for approximately 45 minutes. Check the center and then add 10 minute increments until completely heated through.
Refrigeration Instructions
This casserole refrigerates well for up to 7 days. Reheat in the microwave for a quick and easy lunch or dinner.

PLEASE NOTE:
While we have provided a jump to recipe button, please note that by skipping the copy, you are missing useful information on ingredients and techniques, substitutions, frequently asked questions with responses, tips and a lot more information that might be useful for troubleshooting or making the recipe.

Pepperoni Pizza Spaghetti Casserole
Ingredients
- 8 ounces spaghetti noodles cooked
- 24 ounces pasta sauce
- 8 ounces sour cream
- 2 cups mozzarella cheese more or less depending on taste
- 1 cup pepperoni more to taste
Instructions
- Preheat oven to 350.
- If you haven’t already cooked your pasta, do that now. Once it’s cooked and drained, put it in a 9×13 glass casserole dish.
- In a bowl, combine the spaghetti sauce and the sour cream. If you are wanting this to be 5 ingredients or less, stop here. But if you want to add some garlic, onion, spices & seasonings – add to the spaghetti sauce/sour cream combo now. We also add about ¼ cup of Parmesan cheese.
- Mix the sauce into the noodles in the dish.
- Cover with half the Mozzarella cheese you are planning to use. (we use a LOT of cheese)
- Layer the entire top of the casserole with pepperoni slices.
- Sprinkle the remaining cheese across the top.
- Put in the oven for 10-15 minutes or until cheese is melted. Serve immediately.
For Freezing:
- If you make this to freeze, prepare as directed but DO NOT put in the oven. Cover and freeze. When ready to bake, remove from the freezer and allow to sit at room temperature for 30-45 minutes uncovered.
- Put in the oven at 350 degrees for 30-45 minutes.

I have a spaghetti casserole I make that our family loves, so I know this is something my kids would really like! Especially with the pepperoni. We would also need more than a 8.5×11 for our family, so I will probably double it or so.
Thanks Brandie, it’s just delicious.
We’re going to make this for dinner tonight. Thanks for the recipe. Quick question – how much (dry) noodles do I cook to make 8 oz. cooked noodles?
Its the same- 8 oz. You just need to cook it before putting it in the casserole dish, which is why it says cooked. I hope you enjoy it! It’s so good and a real favorite around here.