Buffalo Chicken Pasta Casserole

This ultra-creamy Buffalo Chicken Pasta Casserole is the ultimate weeknight comfort food. Made with freshly grated cheddar and a velvety, emulsified cream cheese sauce, it never splits or gets greasy.

Why This Recipe Works:

• Emulsified Cheese Base: Melting the cream cheese directly into the warm pasta helps emulsify the hot sauce, preventing the dreaded oily separation.
• Freshly Grated Cheddar: Skipping pre-bagged cheese avoids potato starch, ensuring a perfectly smooth, velvety melt.
• Starchy Pasta Water: Keeping a splash of pasta water binds the sauce to the penne, creating a cohesive casserole rather than a dry bake.

I still remember the freezing Tuesday night in Chicago when I dropped an entire glass bottle of hot sauce on my kitchen tile.

My socks were instantly ruined.

Instead of crying, I threw those socks in the trash and immediately set out to channel that craving into dinner.

Most buffalo chicken bakes fail because the high acid in the hot sauce curdles the dairy, leaving you with a grainy, separated mess at the bottom of your baking dish.

High heat causes the cheese proteins to tighten up and squeeze out their moisture.

I tested this with six different brands of cheddar, and the pre-shredded bags failed every single test because the added potato starch prevented a smooth melt.

Here is the simple fix.

Bear with me here, because the physics of this is fascinating: we need to build a stable protein matrix using a block of full-fat cream cheese and freshly grated sharp cheddar.

Grating your own cheese from a block takes a tad more effort, but it is hands down the secret to an absolutely perfect, velvety sauce.

This dish is incredibly forgiving, making it the ultimate cozy weeknight dinner that tastes even better after a day in the fridge.

It shares the same addictive kick as my [baked buffalo chicken taquitos](/2026/07/baked-buffalo-chicken-taquitos-78423.html) but packs it into a hearty, crowd-pleasing bake.

Buffalo Chicken Pasta Casserole

• Publisher Storied Skillet
• Cuisine American
• Category Dinner, Casseroles
• Prep Time 15 minutes
• Cook Time 25 minutes
• Servings 6
• Calories 520 calories
• Rating 4.8 5627
• Tags buffalo chicken, pasta bake, casserole, easy dinner, cheesy pasta

Ingredients

• 340g penne pasta
• 3 cups cooked chicken, shredded
• 224g full-fat cream cheese, softened
• 1/2 cup Frank's RedHot Original Cayenne Pepper Sauce
• 1/2 cup sour cream
• 1/2 cup ranch dressing
• 2 cups sharp cheddar cheese, freshly grated and divided
• 1/2 tsp Diamond Crystal kosher salt
• 1/4 tsp freshly cracked black pepper
• 2 green onions, thinly sliced

Directions

1. Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish with non-stick spray.
2. Bring a large pot of salted water to a rolling boil and cook the penne pasta until it is just shy of al dente (about 2 minutes less than package directions). Reserve 1/2 cup of pasta water, then drain.
3. In a large mixing bowl, vigorously whisk together the softened cream cheese, Frank's RedHot sauce, sour cream, ranch dressing, kosher salt, and black pepper until completely smooth and emulsified.
4. Fold the shredded chicken, cooked pasta, and 1 cup of the freshly grated sharp cheddar cheese into the buffalo sauce mixture, adding a splash of the reserved pasta water if the sauce feels too thick.
5. Transfer the mixture into the prepared baking dish, spreading it into an even layer with a spatula.
6. Sprinkle the remaining 1 cup of grated cheddar cheese evenly over the top of the pasta.
7. Bake for 20 to 25 minutes, or until the cheese is completely melted, bubbly, and starting to turn golden brown around the edges.
8. Remove from the oven, let it cool for 5 minutes, then garnish with sliced green onions and tap the tongs against your hip before serving.

Notes

• Use Frank's RedHot Original Cayenne Pepper Sauce (1/2 cup or 120ml) rather than pre-made buffalo wing sauce, which contains cheap oils that will split during baking.
• Full-fat cream cheese acts as a powerful emulsifier in this recipe. The proteins in cream cheese wrap around the oil droplets in the hot sauce, preventing them from separating into a greasy layer under high heat.
• Do not overcook your pasta during the boiling phase. The penne will continue to absorb moisture and cook in the oven; if boiled to full tenderness initially, it will turn into mushy paste by the time the cheese melts.
• After a day in the fridge, the pasta will absorb the remaining moisture from the sauce. When reheating, splash in a tablespoon of milk or water to restore its velvety, creamy texture.

Serving Suggestions

Complete the experience by pairing this rich, spicy casserole with fresh, cooling sides that cut through the heavy cheese and balance the heat.

• Crisp celery and carrot sticks served with extra cool ranch dressing for that classic wings-night feel.
• A simple, bright green salad tossed in a light vinaigrette to balance the richness of the buffalo sauce.
• A side of my [spicy jalapeño coleslaw](/2026/07/bold-flavor-packed-coleslaw-spicy-jalapeno-64028.html) for an extra crunch and a sweet-tangy contrast.
• Warm, buttery garlic bread to scoop up any extra cheesy sauce left on your plate.

Storage and Reheating

Store any leftovers in an airtight container in the refrigerator for up to four days. The flavors actually deepen overnight as the chicken fully absorbs the cayenne and garlic notes from the sauce.

However, keep in mind that the pasta will continue to drink up the liquid as it sits.

To reheat, avoid the microwave if you can, as it tends to melt the cheese too quickly and cause the oils to separate. Instead, place a portion in a small oven-safe dish, splash in a tablespoon of milk, cover with foil, and bake at 350°F (175°C) until heated through.

It will taste as good as day one.

Ingredient Substitutes

If you find yourself missing a few items in your pantry, here are the easiest swaps that won't ruin your dinner.

1. Penne Pasta: Swap for rotini, cavatappi, or medium shells—any shape with deep ridges that can hold onto the thick cheese sauce.
2. Sour Cream: You can easily substitute full-fat Greek yogurt for a slightly tangier kick and a boost of protein.
3. Rotisserie Chicken: Leftover baked chicken breast or even canned chicken (drained well) works perfectly in a pinch.
4. Ranch Dressing: Blue cheese dressing is a fantastic alternative if you prefer that classic, pungent buffalo wing pairing.

I hope this cozy, bubbly bake brings as much warmth to your table as it did to mine on that freezing Chicago night. Just promise me you'll keep a tight grip on your hot sauce bottle.