Pasta & Casseroles

Chicken Alfredo Pasta Bake

4.8 (126 ratings)

Chicken Alfredo pasta bake takes everything you love about creamy fettuccine Alfredo and turns it into a bubbling, cheese-topped casserole that feeds a crowd. A simple homemade Alfredo sauce coats penne and tender chicken before it's blanketed in mozzarella and baked until golden — total comfort food that reheats beautifully for lunch the next day.

Chicken Alfredo Pasta Bake
Prep20 min
Cook25 min
Total45 min
Servings
Calories542 / serving

Why you'll love this recipe

  • Homemade Alfredo sauce, no jarred sauce needed
  • Feeds 6 generously with easy leftovers
  • Golden, bubbly mozzarella topping
  • Great make-ahead casserole for busy weeks

Ingredients

Full ingredient list below — check off items as you shop or cook.

Instructions

  1. Preheat the oven to 375°F (190°C) and grease a 9x13-inch baking dish. Cook the pasta in salted boiling water until al dente; drain and set aside.
  2. In a large saucepan, melt the butter over medium heat and sauté the garlic for 30 seconds until fragrant.
  3. Whisk in the flour and cook for 1 minute, then gradually whisk in the milk and chicken broth until smooth.
  4. Simmer, whisking often, for 5-6 minutes until the sauce thickens enough to coat the back of a spoon. Stir in the parmesan, salt, pepper and nutmeg until melted and smooth.
  5. Toss the cooked pasta and chicken with the Alfredo sauce, then pour into the prepared baking dish. Top evenly with mozzarella.
  6. Bake for 20-25 minutes, until bubbling and golden on top. Garnish with parsley and let rest 5 minutes before serving.

Tips for success

  • Undercook the pasta by a minute or two since it will continue cooking in the oven.
  • Rotisserie chicken is a great shortcut, but leftover grilled or baked chicken breast works too.
  • For extra crunch, mix 1/2 cup panko breadcrumbs with melted butter and sprinkle over the cheese before baking.
  • This casserole freezes well unbaked — assemble, wrap tightly, and bake from frozen at 375°F for about 55-60 minutes.

Frequently asked questions

Can I make chicken Alfredo pasta bake ahead of time?

Yes, assemble the full casserole up to a day ahead, cover and refrigerate, then bake when ready, adding about 5-10 extra minutes to the bake time.

Can I use a different pasta shape?

Any short pasta works well — rigatoni, rotini or shells all hold the sauce nicely.

How do I keep the sauce from being grainy?

Use freshly grated parmesan rather than pre-shredded, and keep the heat at medium so the cheese melts gently instead of separating.

Can I add vegetables to this casserole?

Yes, steamed broccoli, sautéed mushrooms or spinach all stir in well with the pasta and chicken.

Nutrition (per serving)

Calories542
Protein34g
Carbs46g
Fat24g
Sodium690mg
Sugar6g

Nutrition values are estimates and will vary based on exact ingredients and brands used.

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