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Chicken Cordon Bleu Casserole

A baking dish with chicken casserole

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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.

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

  1. Prepare the Oven and Baking Dish: Heat the oven to 350 F and grease a 1 1/2-quart casserole.
  2. 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. making sauce
  3. Assemble the Casserole: Arrange the chicken and ham in the bottom of the casserole.
    chcken and ham in the baking dish
  4. 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.
  5. 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.
    whole baked chicken cordon bleu casserole
  6. Serve: Serve with a side salad or roasted vegetables. Enjoy!