Creamy Chicken Alfredo Pasta Bake: Cheesy Family Casserole

This comforting, cheesy Chicken Alfredo Casserole blends tender chicken, pasta, creamy Alfredo sauce, and a golden melted cheese topping for a satisfying one-dish dinner. If you enjoy classic Chicken Alfredo, this casserole version is perfect for family meals and gatherings — all the rich, creamy flavors of fettuccine Alfredo in an easy bake-and-serve casserole.

Chicken Alfredo Bake

Chicken Alfredo Casserole is the kind of comfort food everyone reaches for: creamy Alfredo sauce, tender chicken, pasta, and lots of melty cheese. It’s popular because it’s flavorful, simple to prepare, and bakes in one dish — which makes both prep and cleanup easier, ideal for busy weeknights or casual entertaining.

Ingredients for Chicken Alfredo Casserole

• Chicken breasts — skinless, boneless breasts or use rotisserie chicken for a shortcut.
• Penne pasta — I used penne because it holds up well in a casserole; rotini or bowtie also work.
• Alfredo sauce — store-bought works fine, or make a simple homemade Alfredo for a fresher flavor.
• Shredded mozzarella cheese — for gooey, melty texture.
• Shredded cheddar cheese — adds a sharper flavor that pairs well with mozzarella.
• Onion — diced small so the flavor distributes throughout the casserole.
• Garlic — minced and sautéed with the onion for aroma and depth.
• Italian seasoning — a small sprinkle gives a subtle Italian flavor.

How to Make Cheesy Chicken Alfredo Casserole

This casserole is straightforward because you can cook components at the same time to save total prep time. You can use pre-cooked rotisserie chicken for an easy shortcut, or prepare your own by simmering chicken breasts until they reach 165°F, then shredding them.

While the chicken cooks, boil the penne pasta according to package directions and sauté the diced onion and minced garlic in a bit of oil or cooking spray until soft. Drain the pasta and combine it in a large bowl with shredded chicken, Alfredo sauce, about half of the mozzarella, the sautéed onion and garlic, and Italian seasoning. Mix until everything is evenly coated.

Transfer the mixture to a 9×13-inch casserole dish, top with the remaining mozzarella and the shredded cheddar, then bake at 350°F for about 25 minutes, until the cheese is melted and bubbly. Let the casserole rest for a few minutes before serving so the topping sets and slices cleanly.

What to Serve with Chicken Alfredo Casserole

Keep sides simple to complement the rich casserole. A fresh green salad (mixed greens, cherry tomatoes, cucumbers, and a light oil-and-vinegar dressing) cuts through the richness nicely. Garlic bread or Texas toast also pairs well — use it to scoop up the creamy sauce or enjoy a crunchy contrast alongside the casserole.

FAQs for Chicken Alfredo Casserole

Tips for Making Baked Chicken Alfredo

Let it rest: Allow the casserole to sit a few minutes after baking so it sets and serves easily.

Undercook the pasta slightly: Drain the pasta just shy of al dente, since it will finish cooking in the oven and you want to avoid mushy noodles.

Use shortcuts when needed: Rotisserie chicken is a great time-saver and works perfectly if you’re short on time.

More Chicken Casserole Ideas

Try other crowd-pleasing chicken bakes like Cheesy Chicken and Broccoli Casserole, Chicken Pasta Bake, or Chicken Taco Stuffed Shells for different flavor profiles and easy weeknight dinners.

Casserole Essentials

Good bakeware and a few basic tools make casseroles easier. A reliable 9×13 baking dish, a large mixing bowl, and a spatula or serving spoon are all you need for this recipe. If you shred chicken often, a pair of meat shredding claws or a simple fork method will save time.

Chicken Casserole Recipes

📖 Recipe