Description

A creamy, comforting baked chicken cordon bleu casserole featuring tender chicken, smoky ham, and melty Swiss cheese baked into a golden, bubbly dish perfect for easy weeknight dinners.

Ingredients

Scale

3 large boneless, skinless chicken breasts (about 1.5 pounds / 700g), cut into bite-sized pieces
8 ounces sliced ham (225g), deli-style or leftover holiday ham
8 ounces shredded Swiss cheese (225g), or Gruyère as a substitute
3 tablespoons unsalted butter (45g)
3 tablespoons all-purpose flour (24g), or gluten-free flour/cornstarch for gluten-free version
2 cups whole milk (480ml)
½ cup heavy cream (120ml)
1 tablespoon Dijon mustard
1 teaspoon garlic powder
1 teaspoon onion powder
Salt and pepper to taste
1 cup breadcrumbs (100g), preferably panko
2 tablespoons fresh parsley, chopped (optional)

Instructions

Cut the chicken breasts into bite-sized pieces and season with salt, pepper, garlic powder, and onion powder.
Heat butter in a large skillet over medium heat. Add chicken and cook for 5-7 minutes until cooked through and starting to brown.
In a medium saucepan, melt 3 tablespoons butter over medium heat. Whisk in flour and cook for 1-2 minutes to form a roux.
Slowly whisk in milk, then add heavy cream and Dijon mustard. Continue whisking until sauce thickens, about 4-5 minutes. Season with salt and pepper to taste.
Preheat oven to 350°F (175°C). In a large mixing bowl, combine sautéed chicken, diced ham, and shredded Swiss cheese.
Pour creamy sauce over the mixture and gently stir to combine. Transfer to a greased 9×13-inch baking dish and spread evenly.
Sprinkle breadcrumbs evenly over the casserole. Optionally, drizzle melted butter over breadcrumbs for extra crispiness.
Bake for 25-30 minutes until the top is bubbly and golden brown.
Let casserole rest for 5 minutes before serving. Garnish with fresh parsley if desired.

Notes

Use fresh shredded Swiss cheese for best melting results. Drizzle melted butter over breadcrumbs before baking for a crispy topping. Season in layers for deeper flavor. Assemble ahead and bake later, adding extra baking time if baking from cold. Leftovers reheat well with a splash of milk to restore creaminess. For gluten-free, substitute flour and breadcrumbs accordingly.

Prep Time: 15 minutes
Cook Time: 30 minutes
Category: Main Course
Cuisine: American

Nutrition

Serving Size: 1/6th of casserole
Calories: 450
Sugar: 4
Sodium: 720
Fat: 25
Saturated Fat: 13
Carbohydrates: 18
Fiber: 1
Protein: 35

Keywords: baked chicken cordon bleu casserole, creamy chicken casserole, easy chicken dinner, comfort food, weeknight meal, cheesy casserole, ham and cheese casserole