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–+ servings
Close up square image of casserole on white plate with garlic bread.
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5 from 1 vote

Chicken Alfredo Casserole

Ready for a filling and creamy, delicious dinner recipe? Then you must try this Chicken Alfredo Casserole - ready in under an hour start to finish.
Prep Time15 minutes
Cook Time35 minutes
Total Time50 minutes
Course: Main Course
Cuisine: American
Servings: 12 servings
Calories: 500kcal
Author: Tornadough Alli

Ingredients

For the sauce:

  • ½ cup unsalted butter
  • ¼ cup all-purpose flour
  • 1 tablespoon garlic powder
  • 1 teaspoon black pepper
  • ½ teaspoon kosher salt
  • 1 ½ cups whole milk
  • ½ cup unsalted chicken stock
  • ½ cup heavy cream
  • 8 ounces cream cheese softened and diced
  • ½ cup grated parmesan cheese

For assembly:

  • 16 ounces penne pasta cooked and drained well
  • 3 cups cooked shredded chicken
  • 3 cups shredded mozzarella cheese
  • Fresh chopped parsley for garnish optional

Instructions

  • Preheat the oven to 375°F. Spray a 9x13 baking dish with cooking spray, and set aside.
  • In a dutch oven or large pot, make the sauce by melting the butter over medium heat. Once melted, whisk in the flour, garlic powder, pepper, and salt, and cook for 1 minute.
  • Slowly stream in the milk while constantly whisking to avoid lumps. Repeat with the chicken stock and heavy cream, the mixture should be smooth.
  • Add the cream cheese and stir it in until melted.
  • Add the parmesan and stir to combine. Take off the heat.
  • Add the cooked penne and shredded chicken to the pot, and stir until everything is coated in the sauce.
  • Pour half the mixture into the prepared baking dish, and top with half of the mozzarella cheese.
  • Add the remaining pasta on top, followed by the remaining mozzarella.
  • Bake uncovered for 20 minutes until bubbly. Turn on the broiler and broil until golden brown. Serve immediately with parsley garnish if desired.

Notes

  1. You can replace penne with other pasta options, see my suggestions above. 
  2. Reheating this is easier than reheating traditional alfredo options, see my tips above. 
  3. It's simple to add more herbs and spices, see my idea above. 
  4. This is a hearty portion, serving 12 servings, you can double this in two casserole dishes if needed. 
  5. Feel free to swap out the cheese options or add more cheese. I shared my other ideas above. 
  6. When reheating this pasta, you'll need to add a splash of liquid to help thin out the sauce a bit. 
  7. Leftovers can be frozen, see my tips above. 

Nutrition

Calories: 500kcal | Carbohydrates: 35g | Protein: 24g | Fat: 29g | Saturated Fat: 17g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 0.3g | Cholesterol: 106mg | Sodium: 452mg | Potassium: 297mg | Fiber: 1g | Sugar: 4g | Vitamin A: 926IU | Vitamin C: 0.1mg | Calcium: 257mg | Iron: 1mg