Cheesy White Pizza Casserole

Cheesy White Pizza Casserole is the answer when everyone wants pizza but you crave something bubbly and comforting from the oven. The hearty pasta swaddled in a creamy white sauce, paired with stretchy mozzarella, and studded with pepperoni is pure coziness. I reach for this whenever a crowd comes over and easy impressive dinners are top priority.

I was skeptical the first time I traded tomato sauce for white, but that silky herby coating makes the whole dish taste extra savory and rich. Whenever I serve it, someone asks for the recipe.

Ingredients

• penne pasta: pasta shape catches all the creamy sauce choose bronze-cut if possible for best texture
• shredded mozzarella cheese: gives gooey melted topping always buy a block and shred for freshness
• pepperoni: brings smoky bold flavor pick a classic or turkey style for lighter option
• unsalted butter: essential for flavor and building the roux a quality creamery brand makes a difference
• onion: creates aromatic sweetness look for a firm medium onion with shiny skin
• garlic: boosts the richness use fresh plump cloves or microplane for extra smoothness
• all-purpose flour: helps thicken the sauce use a fresh bag for best results
• heavy cream: brings lusciousness warm it to avoid lumps in the sauce
• fresh thyme and oregano: deliver signature white pizza flavor always pick green fragrant leaves avoid dried if possible
• parmesan cheese: adds nutty tang and thickens the sauce grate it yourself for better melting
• salt and pepper: layers flavor use kosher salt and freshly cracked peppercorns if available

Instructions

Preheat and Prep:

Set your oven to 350 degrees F so it is thoroughly hot when your dish goes in Use a 9 by 13 inch baking pan and grease it well to prevent sticking

Cook Pasta:

Boil a big pot of salted water and cook the penne al dente according to package timing Drain thoroughly and set aside so it does not continue cooking from residual heat

Make Aromatics Base:

Place a large skillet over low heat Add the unsalted butter and let it melt fully Toss in the minced onion and a small sprinkle of salt this draws out the flavor Cook slowly for about five minutes the goal is to make the onions soft pale and sweet not browned

Add Garlic:

Stir in the minced garlic Let it sizzle gently for about thirty seconds just until it smells fragrant

Thicken the Sauce:

Sprinkle the flour over onions and garlic Stir well to cover everything evenly Set heat to medium and keep stirring one to two minutes so the raw flour flavor cooks away

Build the White Sauce:

Slowly drizzle the warmed heavy cream into the pan stirring constantly to prevent lumps Keep stirring as it loosens then thickens Let the mixture reach a gentle simmer and cook until it is the consistency of gravy

Season and Enrich the Sauce:

Add the fresh thyme and oregano leaves plus salt and pepper Stir and taste Adjust to your favorite flavor and let scent infuse for another minute

Finish and Mix the Sauce:

Take the skillet off the heat and add all the grated parmesan cheese Stir thoroughly so the sauce is smooth and a bit stretchy

Combine Everything:

In a large bowl gently mix the cooked penne three quarters of the pepperoni one cup of mozzarella and the warm white pizza sauce Toss with a big spoon until everything is coated

Assemble the Casserole:

Spread the pasta mixture into your prepared baking dish Cover the top with the rest of the shredded mozzarella and arrange remaining pepperoni in a single layer

Bake to Perfection:

Slide the pan into the oven Bake for twenty five to thirty minutes until the cheese is bubbling and golden on the edges For a bubbling browned crust broil for one to two hot minutes but watch closely

Rest and Serve:

Let the casserole rest five minutes before scooping This keeps the creamy sauce from running and gives you cleaner servings

I am obsessed with the contrast of creamy parmesan sauce and pools of melted mozzarella If my sister is visiting we always double the pepperoni since we both fight for the crispy edges after broiling

Storage Tips

Leftover casseroles keep their texture for up to four days in the fridge Cover the pan tightly with foil or use an airtight container For best taste let portions come to room temperature before reheating Reheat gently in the microwave or oven until steaming That way the sauce stays creamy and cheese does not seize

Ingredient Substitutions

Swap penne for ziti rotini or even gluten free pasta if needed Smoked turkey or cooked sausage subs well for pepperoni If you want vegetarian use sautéed mushrooms or spinach For extra flavor fresh basil at the end is fantastic Light cream in place of heavy works but sauce will be a touch thinner

Serving Suggestions

Pile onto warm plates with a crisp green salad or a platter of roasted broccoli Kids love it straight with garlic bread For a little heat top with cracked black pepper or a sprinkle of crushed red pepper flakes

White Pizza History

White pizza is rooted in Italian pizza bianca a classic style without tomato sauce It is all about letting milk cream and cheese shine As a casserole it brings together warmth and sharing just like a big pie out of a wood-fired oven

Seasonal Adaptations

in spring stir peas or asparagus into the final mix summer time zucchini or roasted cherry tomatoes work well in winter a scattering of cooked pancetta makes it heartier

Success Stories

Last New Year’s Eve I brought this casserole to my neighbors It did not last more than ten minutes and even picky eaters asked for seconds Friends text me pictures every time they make it themselves I love how this easy twist on pizza turns simple ingredients into something so craveable

Freezer Meal Conversion

Make the casserole up to the point of baking and let it cool fully Wrap tightly and freeze for up to three months Thaw overnight in the fridge and add extra cheese before baking to keep the meltiness

This casserole is perfect comfort food for any time a pizza craving strikes. Everyone will ask for seconds and the leftovers are just as good the next day.

Common Recipe Questions

→ How do I prevent the sauce from becoming lumpy?

Stir the flour into the butter and onions while cooking, then slowly drizzle in the warm cream, whisking gently to create a smooth base.

→ Can I substitute penne with another pasta?

Yes, you can use other short pasta shapes such as rigatoni or fusilli. Cook until al dente for best texture.

→ Is it possible to make this casserole ahead?

You can assemble the casserole ahead, cover, and refrigerate. Bake just before serving for freshest results.

→ What cheese works best for extra meltiness?

Mozzarella gives the creamiest texture, while a mix of mozzarella and parmesan adds deeper flavor.

→ Can fresh herbs be replaced with dried herbs?

If using dried herbs, use half the amount for thyme and oregano. Fresh adds brightness, but dried works well, too.