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Turkey Cordon Bleu Casserole in a baking dish

Turkey Cordon Bleu Casserole

Not sure what to do with leftover turkey or ham after the holidays? Make this creamy cheesy twist on classic Cordon Bleu in a casserole.
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Course: Casserole, Comfort Food, Main Course, Main Meal
Cuisine: America
Keyword: comfort food, easy dinner, low carb casserole
Prep Time: 10 minutes
Cook Time: 35 minutes
Total Time: 45 minutes
Servings: 6 servings
Author: Laura Franco


For the casserole

  • 2 cups cubed cooked turkey
  • 2 cups cubed cooked ham
  • 1-1/4 cups shredded gruyere cheese
  • 1/3 cup flour
  • 1-1/2 cups milk
  • 4 tbsp butter
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1/4 teaspoon nutmeg
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper

For the topping

  • 1/2 cup plain panko bread crumbs
  • 1/3 cup shredded gruyere cheese
  • 2 tbsp melted butter


  • Preheat oven to 350°
  • Cut ham and turkey into large chunks.
  • Spray a casserole dish with non-stick cooking spray.
  • Lay the ham and turkey into the casserole dish and set aside.
  • Melt butter in a saucepan.
  • Stir in flour to make a roux and cook for 1-2 minutes stirring continuously.
  • Add the milk and continue to stir.
  • When the milk is hot add salt, pepper, garlic powder, onion powder, and nutmeg.
  • Add the cheese 1/4 cup at a time and continue to stir.
  • Pour the cheese sauce over the ham and turkey.
  • In a small bowl, mix butter, panko bread crumbs, and gruyere cheese.
  • Sprinkle the panko mixture over the top of the casserole.
  • Bake for 30 minutes.
  • Turn the oven up to broil and broil for 5 minutes until the panko begins to turn brown.


  • If you don't have leftover ham or turkey, you can buy both from the grocery store deli. Simply ask for a thick 2-3 inch slices and then you can dice it into bite-sized pieces.
  • Store any leftovers covered and in the refrigerator for up to 2 days.
  • You can freeze this dish for up to 3 months.
  • This is a great make-ahead dish, that you can pull out and pop into the oven when it's time for dinner.
  • Serve this recipe alone, or on top of butter noodles with a side salad.