This Chicken Cordon Bleu Casserole brings together the classic flavors of tender chicken, savory ham, and creamy Swiss cheese in a comforting, hassle-free dish. It’s perfect for busy weeknights or family dinners when you want something hearty and delicious with minimal effort.
Ingredients
Main:
- 5 cups cooked shredded chicken
- 9 ounces deli-style Black Forest ham, sliced into strips (about 9 slices)
- 8 ounces Swiss cheese, thinly sliced (about 12 slices)
For the Sauce:
- 6 tablespoons unsalted butter
- 1 tablespoon Dijon mustard
- 1 tablespoon freshly squeezed lemon juice (optional)
- 1 teaspoon garlic powder
- ½ teaspoon salt
- ¼ teaspoon nutmeg (optional)
- ¼ teaspoon cayenne pepper (optional)
- 6 tablespoons all-purpose flour
- 3 cups whole milk
Topping:
- 1 ½ cups Panko breadcrumbs
- 4 tablespoons unsalted butter, softened
Optional garnish:
- Chopped fresh parsley
Instructions
- Prepare Oven and Dish:
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch casserole dish with nonstick spray. - Layer the Base:
Spread the shredded chicken evenly in the casserole dish. - Add Ham and Cheese:
Layer the ham strips evenly over the chicken, then top with Swiss cheese slices, overlapping as needed. - Make the Sauce:
In a saucepan over medium heat, melt the butter. Stir in the Dijon mustard, lemon juice (if using), garlic powder, salt, nutmeg, and cayenne pepper. Whisk in the flour and cook for a minute until it forms a paste. Gradually whisk in the milk, a little at a time, until smooth. Let the sauce simmer and thicken for about 4 minutes, whisking occasionally. - Assemble:
Pour the thickened sauce over the cheese layer, spreading it evenly. - Prepare Topping:
Mix the softened butter with the Panko breadcrumbs until well combined. Sprinkle the mixture evenly over the casserole. - Bake:
Bake uncovered for 30–40 minutes, until the sauce is bubbly and the topping turns golden brown. - Rest and Serve:
Let the casserole rest for 5 minutes to allow the sauce to set. Garnish with parsley if desired and serve warm.
Tips and Variations
- For a gluten-free version, substitute the all-purpose flour and breadcrumbs with gluten-free alternatives.
- Swap Swiss cheese with Gruyère or mozzarella for a different twist.
- Add a layer of sautéed spinach or steamed vegetables for extra nutrition.
- Letting the casserole rest before serving helps it hold together better.
Storage
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat individual portions in the microwave or warm the whole dish in the oven until heated through.
This Chicken Cordon Bleu Casserole is an effortless way to enjoy all the classic flavors in one dish, perfect for busy families or casual entertaining.