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Chicken Cordon Bleu Casserole is pictured in this article's featured image, showcasing a cheesy and delicious baked dish.

Ultimate Chicken Cordon Bleu Casserole

This casserole transforms the classic Chicken Cordon Bleu into a convenient and comforting bake. Layers of tender chicken, savory ham, melted Swiss cheese, and a crispy breadcrumb topping create a satisfying and flavorful meal perfect for weeknights or gatherings.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 6
Course: Main Course
Cuisine: American
Calories: 450
Ingredients Equipment Method Notes

Ingredients
  

  • 4 boneless, skinless chicken breasts, cooked and cubed
  • 8 oz cooked ham, diced
  • 4 oz Swiss cheese, shredded about 1 cup
  • 1/2 cup mayonnaise
  • 1/4 cup sour cream
  • 1/4 cup milk
  • 1 teaspoon Dijon mustard
  • 1/4 teaspoon garlic powder
  • 1/4 teaspoon onion powder
  • 1/4 cup bread crumbs, plain or panko
  • 2 tablespoons butter, melted
  • Salt to taste
  • Pepper to taste

Equipment

  • 9x13-inch baking dish
  • Large bowl
  • small bowl
  • whisk
  • Measuring cups
  • Measuring spoons
  • Oven

Method
 

  1. Preheat oven to 350°F (175°C). Lightly grease a 9x13 inch baking dish.
  2. In a large bowl, combine the cooked chicken, ham, and half of the shredded Swiss cheese.
  3. In a separate bowl, whisk together the mayonnaise, sour cream, cream of chicken soup, milk, Dijon mustard, garlic powder, and onion powder. Season with salt and pepper to taste.
  4. Pour the sauce over the chicken and ham mixture and stir gently to combine. Spread evenly into the prepared baking dish.
  5. Sprinkle the remaining Swiss cheese over the top of the casserole.
  6. In a small bowl, combine the bread crumbs and melted butter. Sprinkle the bread crumb mixture evenly over the cheese.
  7. Bake for 25-30 minutes, or until the casserole is heated through and the topping is golden brown and bubbly.
  8. Let the casserole rest for 5-10 minutes before serving. This allows the flavors to meld together and the sauce to thicken slightly.

Notes

For best results, pre-cook the chicken to prevent a soggy casserole. You can use rotisserie chicken for convenience. Consider adding a small amount of Gruyere cheese to enhance the flavor. Store leftovers in an airtight container in the refrigerator for up to 3 days.