Easy pepperoni pasta bake with melted mozzarella, savory marinara sauce, and tender pasta. This baked pasta casserole combines classic Italian flavors with gooey cheese and zesty pepperoni, perfect for family dinners or meal prep. A comforting, crowd-pleasing recipe that’s simple to make and full of flavor.

Ingredients

1 lb dry pasta (any shape you prefer)
1 tbsp olive oil
½ white onion, finely diced
½ tsp dried oregano
4 cloves garlic, minced
2 cups marinara sauce
1 (15 oz) can diced tomatoes, drained
2 cups shredded mozzarella cheese, divided
½ cup grated Parmesan cheese
About 30 pepperoni slices, halved
Optional toppings: chopped fresh basil or Italian parsley, shaved Parmesan

Instructions

Preheat Oven
Preheat your oven to 375°F (190°C).
Cook Pasta
Bring a large pot of salted water to a boil. Cook the pasta until al dente according to package instructions. Drain and set aside.
Prepare Sauce Base
While the pasta cooks, heat olive oil in a skillet over medium-high heat. Add the diced onion and sauté for about 5 minutes until translucent. Stir in garlic and oregano, cooking for another minute until fragrant. Remove from heat.
Combine Ingredients
In the pasta pot, return the drained pasta. Add the onion-garlic mixture, marinara sauce, drained diced tomatoes, mozzarella cheese (reserve a small amount for topping), Parmesan cheese, and pepperoni halves. Stir gently to combine everything evenly.
Bake the Pasta
Transfer the mixture to a greased baking dish. Sprinkle the reserved mozzarella evenly over the top. Bake uncovered for 20–25 minutes until the cheese is melted and slightly golden on the edges.
Serve
Remove from the oven and let cool slightly. Garnish with fresh basil, parsley, or shaved Parmesan if desired. Serve warm.

Why You’ll Love This Recipe

Classic comfort food with savory pepperoni and gooey melted cheese.
Easy to prepare with pantry staples and quick-cooking pasta.
Perfect for weeknight dinners or feeding a crowd.
Bakes into a cheesy, flavorful dish that kids and adults both love.

Tips

Use freshly grated Parmesan for best flavor.
Don’t overcook the pasta; it will continue to cook slightly in the oven.
Reserve some cheese for a golden, bubbly topping.
Let the baked pasta rest for a few minutes before serving for easier slicing.

Variations and Substitutions

Substitute pepperoni with cooked Italian sausage or sliced mushrooms.
Use gluten-free pasta if needed.
Add vegetables like spinach, bell peppers, or zucchini for extra nutrition.
Swap marinara for a spicy arrabbiata sauce for a kick.

FAQs

Can I prepare this ahead of time?
Yes, assemble the pasta bake and refrigerate it for up to 24 hours before baking.

How do I reheat leftovers?
Warm in the oven at 350°F until heated through, or microwave individual portions.

Can I freeze this dish?
Yes, freeze before baking in an airtight container for up to 3 months. Thaw overnight before baking.

Serving and Suggestions

Serve with a fresh green salad and garlic bread.
Pair with a simple Caesar salad or steamed vegetables.
A great dish for potlucks, family dinners, or casual gatherings.