Simple Ham and Swiss Cordon Bleu Casserole

This Ham and Swiss Cordon Bleu Casserole brings all the comforting flavors of the classic restaurant favorite into an easy, family-friendly baked dish. Tender chicken, savory ham, creamy Swiss cheese, and a rich Dijon-infused sauce are layered together and topped with a crispy Parmesan breadcrumb crust.

Perfect for busy weeknights or casual family dinners, this casserole delivers all the flavor of traditional chicken cordon bleu without the extra work of breading, stuffing, and frying. Simply assemble, bake, and enjoy a hearty meal that feels special with minimal effort.

Ingredients

• 3 cups cooked chicken, shredded or cubed
• 8 ounces sliced ham, cut into strips or squares
• 8 ounces Swiss cheese, sliced or shredded
• 2 cups milk
• 1 cup low-sodium chicken broth
• 1 cup sour cream or plain Greek yogurt
• 1 (10.5-ounce) can condensed cream of chicken soup
• 1 teaspoon Dijon mustard
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/2 teaspoon dried thyme (optional)
• 1/2 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 1 1/2 cups panko breadcrumbs
• 4 tablespoons unsalted butter, melted
• 1/2 cup grated Parmesan cheese
• Cooking spray or butter, for greasing the baking dish
• Fresh parsley, chopped, for garnish (optional)

Instructions

1. Preheat the oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
2. Spread the cooked chicken evenly across the bottom of the prepared baking dish.
3. Arrange the ham evenly over the chicken layer.
4. Top with the Swiss cheese, covering the ham completely.
5. In a large bowl, whisk together the milk, chicken broth, sour cream, cream of chicken soup, Dijon mustard, garlic powder, onion powder, thyme, salt, and pepper until smooth.
6. Pour the sauce evenly over the chicken, ham, and cheese layers.
7. In a small bowl, combine the breadcrumbs, melted butter, and Parmesan cheese until evenly moistened.
8. Sprinkle the breadcrumb mixture evenly over the casserole.
9. Cover loosely with aluminum foil and bake for 20 minutes.
10. Remove the foil and continue baking for 15 to 20 minutes, or until the casserole is bubbling and the topping is golden brown.
11. Allow the casserole to rest for 5 to 10 minutes before serving.
12. Garnish with fresh parsley, if desired, and serve warm.

Serving Suggestions

Pair this creamy casserole with a crisp green salad, steamed broccoli, green beans, or roasted vegetables. For an extra comforting meal, serve alongside buttered egg noodles, mashed potatoes, or slices of crusty bread for soaking up the delicious sauce.

Variations & Tips

• Substitute plain Greek yogurt for sour cream for a lighter option.
• Use reduced-fat Swiss cheese and low-fat soup to cut calories.
• Add cooked broccoli, asparagus, or spinach between the chicken and ham layers.
• Increase the Dijon mustard or add smoked paprika for bolder flavor.
• For a homemade sauce, replace the condensed soup with a simple white sauce made from butter, flour, milk, and broth.
• Use gluten-free breadcrumbs and soup for a gluten-free version.
• Assemble the casserole up to 24 hours in advance and refrigerate until ready to bake.

Storage

• Store leftovers covered in the refrigerator for up to 4 days.
• Reheat in the microwave or a 350°F oven until thoroughly heated.
• For the crispiest topping, reheat in the oven rather than the microwave.

Recipe Details

• Prep Time: 20 minutes
• Cook Time: 35 to 40 minutes
• Total Time: 1 hour
• Servings: 6
• Method: Bake
• Cuisine: American Comfort Food