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Overhead view of a golden-brown Chicken Cordon Bleu Casserole, fresh from the oven and ready to be served.

Easy Chicken Cordon Bleu Casserole

This Chicken Cordon Bleu Casserole transforms a classic dish into an easy-to-assemble comfort food, perfect for weeknights or potlucks. It features layers of creamy, cheesy goodness, studded with tender chicken and salty ham, all baked to golden-brown perfection.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6
Course: Main Course
Cuisine: American
Calories: 450
Ingredients Equipment Method Notes

Ingredients
  

  • 3 cups cooked chicken, shredded or cubed
  • 1 ½ cups cooked ham, diced
  • 1 ½ cups Swiss cheese, shredded
  • ½ cup sour cream
  • ¼ cup mayonnaise
  • 2 tablespoons Dijon mustard
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • Salt to taste
  • Pepper to taste
  • 1 ½ cups crushed butter crackers such as Ritz
  • 3 tablespoons melted butter

Equipment

  • 9x13 inch baking dish
  • Large bowl
  • Small bowl
  • Oven
  • Measuring cups
  • Measuring spoons
  • Spoon or spatula

Method
 

  1. Preheat your oven to 350°F (175°C).
  2. Grease a 9x13 inch baking dish.
  3. In a large bowl, combine the cooked chicken, ham, Swiss cheese, cream of chicken soup, sour cream, mayonnaise, Dijon mustard, garlic powder, onion powder, salt, and pepper. Mix well to ensure everything is evenly distributed.
  4. Pour the mixture into the prepared baking dish and spread evenly.
  5. In a separate bowl, combine the crushed butter crackers and melted butter. Mix until the crumbs are evenly coated.
  6. Sprinkle the cracker topping evenly over the chicken mixture.
  7. Bake for 25-30 minutes, or until the casserole is heated through and the topping (if using) is golden brown.
  8. Let the casserole rest for 5-10 minutes before serving.

Notes

For a healthier option, use cream of mushroom soup or homemade cream sauce. Greek yogurt can substitute for sour cream. Panko breadcrumbs offer a crispier topping alternative. Add sauteed vegetables like mushrooms or onions for extra flavor. The casserole can be assembled ahead of time and refrigerated for up to 24 hours or frozen for up to 3 months. Thaw overnight before baking.