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Best Chicken Cordon Bleu Casserole

Best Chicken Cordon Bleu Casserole

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This Chicken Cordon Bleu Casserole transforms the classic flavors into an easy weeknight dinner. Tender chicken, savory ham, and Swiss cheese are layered in a creamy sauce, baked to golden perfection for a comforting, cheesy dish everyone will love.

  • Total Time: 50 minutes
  • Yield: 6 servings

Ingredients

Scale
  • 3 cups cooked chicken, shredded or cubed
  • 1 ½ cups cooked ham, diced
  • 2 cups shredded Swiss cheese, divided
  • ½ cup sour cream
  • ¼ cup milk
  • 1 can cream of chicken soup (10.5 oz)
  • 1 tablespoon Dijon mustard
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • Salt and pepper to taste
  • ½ cup bread crumbs, optional
  • 2 tablespoons melted butter, optional

Instructions

  1. Preheat oven to 350°F (175°C) and grease a 9×13 inch baking dish.
  2. In a large bowl, combine chicken, ham, and 1 ½ cups of Swiss cheese.
  3. In a separate bowl, whisk together cream of chicken soup, sour cream, milk, Dijon mustard, garlic powder, onion powder, salt, and pepper until smooth.
  4. Pour the sauce over the chicken mixture and stir gently to combine.
  5. Transfer mixture to the prepared dish and spread evenly. Sprinkle remaining ½ cup Swiss cheese on top.
  6. In a small bowl, combine bread crumbs and melted butter (if using) and sprinkle over the cheese.
  7. Bake for 25–30 minutes until heated through and the top is golden and bubbly.
  8. Allow to cool for a few minutes before serving.

Notes

  • Use high-quality ham and Swiss cheese for the best flavor.
  • Don’t overbake; if the topping browns too quickly, tent with foil.
  • Optional: add vegetables like broccoli, mushrooms, or asparagus for added nutrition.
  • Assemble up to 24 hours in advance and refrigerate until baking.
  • Leftovers can be stored in the refrigerator for up to 3 days.
  • Author: lily
  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Category: Main Course
  • Method: Baked
  • Cuisine: American