Go Back
Creamy Chicken Casserole
Caroline

Creamy Chicken Casserole

This creamy chicken casserole combines tender chicken, pasta, and a rich cheese sauce baked to golden perfection — the ultimate comfort food for family dinners or meal prep.
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American
Calories: 430

Ingredients
  

  • 2 cups cooked chicken, chopped into bite-sized pieces
  • 4 cups cooked pasta (about 2 cups uncooked)
  • 3 tbsp unsalted butter
  • 1 small onion, finely chopped
  • 2 cloves garlic, minced
  • 2 tbsp all-purpose flour
  • 1/2 cup sour cream
  • 1 cup milk
  • 3 1/2 cups shredded cheese (divided)
  • 1/2 tsp red pepper flakes
  • salt and black pepper, to taste

Equipment

  • Large skillet
  • whisk
  • large mixing bowl
  • 9x13-inch baking dish
  • oven-safe spatula

Method
 

  1. Preheat the oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish.
  2. In a large skillet, melt butter over medium heat. Add onion and sauté until soft, about 3 minutes. Stir in garlic and cook for 30 seconds.
  3. Sprinkle flour over the onion mixture and stir for 1 minute to eliminate raw flour taste.
  4. Gradually whisk in milk until smooth. Stir in sour cream, 3 cups shredded cheese, red pepper flakes, salt, and pepper. Cook until the cheese melts and sauce thickens.
  5. In a large bowl, mix cooked pasta, chicken, and cheese sauce until evenly coated.
  6. Spread mixture into the prepared baking dish. Top with remaining cheese.
  7. Cook uncovered for 20–25 minutes, until bubbly and golden.
  8. Let rest for 5 minutes before serving for easier scooping.

Notes

  • For extra creaminess, add a splash of heavy cream to the sauce.
  • A breadcrumb topping with melted butter adds a crispy finish.
  • Perfect for meal prep – make two casseroles and freeze one for later.