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Best Chicken Cordon Bleu Casserole Recipe

4.7 from 67 reviews

This Best Chicken Cordon Bleu Casserole is a hearty, comforting dish that combines tender cooked chicken, savory ham, and melted Swiss cheese in a creamy, flavorful sauce. Baked to golden perfection with a crispy breadcrumb topping, it’s an easy twist on the classic chicken cordon bleu, perfect for family dinners or potlucks.

Ingredients

Scale

Main Ingredients

  • 3 cups cooked chicken, shredded or cubed
  • 1 1/2 cups cooked ham, diced
  • 2 cups shredded Swiss cheese, divided
  • 1/2 cup sour cream
  • 1/4 cup milk
  • 1 tablespoon Dijon mustard
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Salt and pepper to taste

Topping (Optional)

  • 1/2 cup bread crumbs, plain or seasoned
  • 2 tablespoons melted butter

Instructions

  1. Preheat and Prepare Dish: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish thoroughly to prevent sticking.
  2. Combine Proteins and Cheese: In a large mixing bowl, mix together the shredded or cubed cooked chicken, diced ham, and 1 1/2 cups of the shredded Swiss cheese, ensuring an even blend.
  3. Mix Sauce Ingredients: In a separate bowl, whisk together sour cream, milk, Dijon mustard, garlic powder, onion powder, salt, and pepper until the mixture is smooth and well combined.
  4. Combine Sauce with Meat Mixture: Pour the sauce mixture over the chicken, ham, and cheese mixture. Stir gently until all ingredients are evenly coated with the creamy sauce.
  5. Assemble in Baking Dish: Transfer the combined mixture into the prepared baking dish and spread it out evenly for uniform baking.
  6. Add Cheese Topping: Sprinkle the remaining 1/2 cup of shredded Swiss cheese evenly over the top of the casserole.
  7. Prepare and Add Breadcrumb Topping: In a small bowl, mix the bread crumbs with melted butter until the crumbs are evenly coated. Sprinkle this breadcrumb mixture evenly over the cheese layer for a crispy finish.
  8. Bake the Casserole: Place the casserole in the preheated oven and bake for 25-30 minutes, until the casserole is heated through, cheese is melted, and the topping is golden and bubbly.
  9. Rest and Serve: Remove the casserole from the oven and let it cool for a few minutes before serving to allow the flavors to settle and to make serving easier.

Notes

  • You can substitute the Swiss cheese with Gruyère or mozzarella for a different flavor profile.
  • If you prefer a gluten-free option, use gluten-free bread crumbs or omit the breadcrumb topping entirely.
  • Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
  • To make preparation faster, use rotisserie chicken or leftover cooked chicken.
  • Adding a pinch of nutmeg to the sauce mixture can enhance the flavor with a subtle warmth.

Keywords: chicken cordon bleu casserole, easy chicken casserole, baked chicken cordon bleu, Swiss cheese casserole, dinner casserole recipes