Chicken Cordon Bleu Casserole

By
Elaine Lemm
Elaine Lemm
Elaine Lemm
Elaine Lemm is a renowned British food writer, classically trained chef, teacher, and author with over 25 years of experience writing about British food and cooking.
Learn about The Spruce Eats' Editorial Process
Updated on 06/30/21
Chicken Cordon Bleu Casserole Recipe

The Spruce / Elaine Lemm
Prep: 20 mins
Cook: 35 mins
Total: 55 mins
Servings: 6 servings
Yield: 1 pan
Nutrition Facts (per serving)
464 Calories
27g Fat
21g Carbs
34g Protein
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Nutrition Facts
Servings: 6
Amount per serving
Calories 464
% Daily Value*
Total Fat 27g 35%
Saturated Fat 12g 61%
Cholesterol 124mg 41%
Sodium 736mg 32%
Total Carbohydrate 21g 8%
Dietary Fiber 1g 4%
Total Sugars 4g
Protein 34g
Vitamin C 0mg 1%
Calcium 330mg 25%
Iron 3mg 14%
Potassium 347mg 7%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

We may all be used to our chicken cordon bleu served as a whole chicken breast filled with ham, a delicious cheesy sauce, and a crispy coating. There is no denying its tastiness, but sometimes you want all the flavor without the time commitment. Introducing, the Chicken Cordon Bleu Casserole. All the goodness, great flavors, and none of the fuss—you will have this on the table in under an hour.

We love this recipe as a way to use up leftover chicken and ham. The casserole makes a great dish all on its own with some crusty bread and is especially good when served over pasta or with a tasty salad for something a little lighter.

Ingredients

  • 4 tablespoons all-purpose flour

  • 2 tablespoons unsalted butter

  • 1 cup whole milk

  • Kosher salt

  • 1 teaspoon mustard

  • Freshly ground black pepper

  • 3/4 cup grated sharp cheddar cheese

  • 3 cups shredded or chopped cooked chicken

  • 1 cup sliced or chopped ham

  • 1 cup breadcrumbs

  • 1/4 cup freshly grated Parmesan

  • For serving (optional): over pasta or with a salad

Steps to Make It

  1. Gather the ingredients. Preheat oven to 350 F.

    Gather the ingredients Chicken Cordon Bleu Casserole

    The Spruce / Elaine Lemm

  2. Place the flour and butter in a medium saucepan over medium heat and cook, stirring constantly, for 2 to 3 minutes to make a simple roux.

    make a roux

    The Spruce / Elaine Lemm

  3. Add the milk and cook, whisking constantly, over medium heat until the sauce is thickened. If the sauce is too thick, then add a little milk at a time, as needed until the consistency is thick enough to be a pourable sauce.

    add milk and stir

    The Spruce / Elaine Lemm

  4. Add a pinch each of salt and pepper, mustard, and cheddar cheese to the saucepan. Cook, whisking, until combined.

    add cheese, mustard and seasoning

    The Spruce / Elaine Lemm

  5. Layer the chicken and ham in a small 3-pint Dutch oven, ovenproof skillet, or baking dish.

    layer chicken and ham

    The Spruce / Elaine Lemm

  6. Pour the cheese sauce over top.

    pour cheese sauce over

    The Spruce / Elaine Lemm

  7. Cover the mixture with the breadcrumbs, then sprinkle the Parmesan over top. Bake on the center oven rack for 30 to 35 minutes or until the breadcrumbs are golden brown and the filling is bubbling.

    Cover with crumbs

    The Spruce / Elaine Lemm

  8. Remove the casserole from the oven and let stand for 5 minutes, then serve immediately with pasta, a salad, or on its own.

    Chicken Cordon Bleu Casserole

    The Spruce / Elaine Lemm

Glass Bakeware Warning

For premade casseroles or leftovers that are in a glass baking dish and have been refrigerated, do not place directly into a hot oven as the glass can shatter. Instead, place any cold glass bakeware into a cold oven to warm up while it preheats. Or, allow the bakeware to rest outside of the fridge for 30 minutes to reach room temperature while the oven preheats.

Tips

You can give yourself a break and make it ahead of time and freeze the casserole to be eaten later. It will stay good in the freezer for 3 to 6 months.

Recipe Variations

The chicken cordon bleu recipe is mainly chicken (surprise!), but turkey works just as well.


This recipe uses sharp cheddar to make the creamy cheese sauce, but you can swap in Swiss or one of your other favorites if you like. Just make sure it is an easy melting cheese and has a strong flavor, or it may get lost in the other ingredients.