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Swiss Chicken Casserole

This Swiss Chicken Casserole is creamy, cheesy, and packed with tender chicken, pasta, and a rich Swiss sauce—an easy, comforting meal that’s perfect for busy weeknights or family gatherings.

Ingredients
  

  • 2 cups milk
  • 1 cup sour cream
  • 1 teaspoon Dijon mustard
  • ½ teaspoon garlic powder
  • 2 cups cooked chicken shredded or diced
  • 2 cups uncooked pasta elbow macaroni, penne, or rotini
  • 2 tablespoons butter
  • 2 tablespoons all-purpose flour
  • ½ teaspoon onion powder
  • Salt and black pepper to taste
  • 1 ½ cups shredded Swiss cheese reserve ½ cup for topping
  • ½ cup breadcrumbs optional, for topping
  • 2 tablespoons butter melted (optional, for topping)

Instructions
 

  • Boil pasta in salted water until al dente, drain, and set aside.
  • Melt butter, stir in flour for 1–2 minutes, then whisk in milk until thickened. Add sour cream, mustard, garlic and onion powder, salt, and pepper.
  • Stir in 1 cup Swiss cheese until melted and smooth.
  • Combine pasta, chicken, and sauce, then transfer to a greased 9×13-inch dish.
  • Top with buttered breadcrumbs and remaining ½ cup cheese if desired.
  • Bake at 350°F (175°C) for 25–30 minutes until bubbly and golden; rest 5 minutes before serving.