This delicious casserole has all the flavors of the famous dish, Chicken Cordon Bleu, but it’s much easier to prepare. The dish starts with cooked ham and chicken. You can use leftover ham and chicken, a rotisserie chicken, purchased pre-diced ham, or deli ham. The dish comes together with a lovely white sauce made with Swiss and Parmesan cheeses, then the casserole is topped with crunchy, buttery breadcrumbs.
I’ve elevated my version with Gruyère cheese, but feel free to use Swiss cheese or Emmental. This is an excellent weeknight meal, and it’s special enough to serve guests.
What to Serve With Cordon Bleu Casserole
- Potatoes: Roasted potatoes would be excellent, or a batch of perfect mashed potatoes.
- Rice: Hot cooked rice or pilaf. This Instant Pot risotto would be delicious alongside the chicken casserole.
- Salad: A Caesar salad, tossed green salad with Italian dressing, or a pasta salad.
- Pasta: Buttered noodles or this roasted garlic spaghetti would be delicious without overwhelming the flavors.
- Vegetables: Choose steamed broccoli, asparagus, or green beans.
Chicken Cordon Bleu Casserole
If you like chicken cordon bleu, you should try this casserole version! Made with ham, chicken, Swiss and Parmesan cheeses, and a buttery breadcrumb topping.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 4 servings 1x
- Category: Casseroles
- Method: Bake
- Cuisine: French
Ingredients
Scale
- 2 tablespoons butter
- 2 tablespoons flour
- 1 teaspoon Dijon mustard
- 1 cup whole milk
- 3/4 cup (3 ounces) Swiss cheese, or Gruyère cheese
- 3 tablespoons grated Parmesan cheese, divided
- 1 teaspoon lemon juice
- Salt and pepper, to taste
- 1 cup diced ham
- 3 cups chopped chicken
- 1 cup fresh breadcrumbs, or panko
- 2 tablespoons melted butter
Instructions
- Prepare the Oven and Baking Dish: Heat the oven to 350 F and grease a 1 1/2-quart casserole.
- Make the Sauce: Melt 2 tablespoons of butter in a saucepan over medium heat. Add the flour and mustard and cook, stirring, for 2 minutes. Gradually add the milk, whisking and cooking until the mixture begins to thicken. Stir in the Swiss or Gruyère cheese and 2 tablespoons of Parmesan cheese; stir until melted. Add the lemon juice; taste and season the sauce with salt and pepper.
- Assemble the Casserole: Arrange the chicken and ham in the bottom of the casserole.
- Add the Sauce and Crumbs: Pour the sauce over the meat. Combine the breadcrumbs with 2 tablespoons of melted butter and the remaining 1 tablespoon of grated Parmesan. Sprinkle over the casserole.
- Bake: Bake uncovered for 25 to 35 minutes, until the topping is browned and the casserole is bubbling. Remove the casserole to a rack and let stand for 5 minutes before serving.
- Serve: Serve with a side salad or roasted vegetables. Enjoy!
