Chicken Cordon Bleu Casserole: Creamy, Cheesy & Comfort in a Dish

If you’ve ever loved the fancy flavor of classic Chicken Cordon Bleu but wished it came together faster, this Chicken Cordon Bleu Casserole is your answer. It’s a creamy, cheesy bake layered with tender chicken, savory ham, and melted Swiss cheese — all topped with buttery breadcrumbs that turn golden in the oven.

The first time I made this casserole, it was on one of those nights when I wanted something indulgent but easy. I had leftover rotisserie chicken and some ham from the weekend, so I threw everything together with a quick cheese sauce and baked it. The result? A bubbling, creamy dish that disappeared faster than anything else on the table. Now it sits right next to my Loaded Cornbread Casserole and Cheesy Scalloped Potatoes as a family-favorite dinner.

Chicken Cordon Bleu Casserole with golden topping

Chicken Cordon Bleu Casserole

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This creamy Chicken Cordon Bleu Casserole is everything you love about the classic — chicken, ham, and Swiss — but easier, faster, and baked with a buttery breadcrumb topping.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American, French-Inspired
Calories: 620

Ingredients
  

  • 3 cups cooked shredded chicken
  • 1 ½ cups diced ham
  • 2 cups shredded Swiss cheese
  • 1 cup shredded mozzarella cheese
  • 4 tablespoons butter
  • 4 tablespoons all-purpose flour
  • 2 cups milk (whole or 2%)
  • 1 cup heavy cream
  • 1 teaspoon Dijon mustard
  • 1/2 teaspoon garlic powder
  • to taste Salt and pepper
  • 1 cup breadcrumbs (Panko or regular)
  • 2 tablespoons melted butter
  • 2 tablespoons grated Parmesan cheese

Equipment

  • 9×13-inch baking dish
  • medium saucepan
  • mixing bowl
  • whisk

Method
 

  1. Preheat oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.
  2. In a medium saucepan, melt butter over medium heat. Whisk in flour and cook for 1 minute. Gradually whisk in milk and cream until smooth. Simmer until thickened. Stir in Dijon, garlic powder, salt, and pepper. Remove from heat and stir in half the Swiss cheese.
  3. Spread shredded chicken in the baking dish. Add diced ham. Pour sauce over, then top with remaining Swiss and mozzarella cheese.
  4. Mix breadcrumbs, melted butter, and Parmesan. Sprinkle over the casserole.
  5. Bake for 25–30 minutes or until golden and bubbly.
  6. Let cool slightly before serving. Serve with a green salad or veggies.

Nutrition

Calories: 620kcalCarbohydrates: 14gProtein: 40gFat: 44gSaturated Fat: 23gPolyunsaturated Fat: 3gMonounsaturated Fat: 10gTrans Fat: 1gCholesterol: 165mgSodium: 960mgPotassium: 480mgFiber: 1gSugar: 5gVitamin A: 1100IUVitamin C: 1mgCalcium: 520mgIron: 2mg

Notes

Perfect for make-ahead dinners. For extra flavor, stir a bit of cream cheese into the sauce or toss in steamed broccoli before baking.

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Why You’ll Love Chicken Cordon Bleu Casserole

It’s got all the classic flavors — tender chicken, smoky ham, and creamy Swiss cheese — without any of the fuss. No pounding chicken breasts or rolling them up; just mix, layer, and bake. It’s rich enough for a special occasion but simple enough for a weeknight.

If you enjoy cozy, cheesy dishes like my Cheesy Broccoli Rice Casserole or Creamy Cheesy Potato Soup, this casserole will fit right into your comfort food lineup.

Ingredients You’ll Need

Ingredients for Chicken Cordon Bleu Casserole

For the Casserole:

  • 3 cups cooked shredded chicken (rotisserie works perfectly)
  • 1 ½ cups diced ham
  • 2 cups shredded Swiss cheese (Gruyère also works)
  • 1 cup shredded mozzarella cheese

For the Sauce:

  • 4 tablespoons butter
  • 4 tablespoons all-purpose flour
  • 2 cups milk (whole or 2%)
  • 1 cup heavy cream
  • 1 teaspoon Dijon mustard
  • ½ teaspoon garlic powder
  • Salt and pepper to taste

For the Topping:

  • 1 cup breadcrumbs (Panko or regular)
  • 2 tablespoons melted butter
  • 2 tablespoons grated Parmesan cheese

If you love creamy baked dishes, you’ll also adore my Cajun Seafood Alfredo — same comforting texture, totally different flavor.

How to Make Chicken Cordon Bleu Casserole

Step 1: Preheat and Prep
Preheat oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.

Step 2: Make the Sauce
In a medium saucepan, melt butter over medium heat. Whisk in flour and cook for 1 minute to form a roux. Gradually whisk in milk and cream until smooth. Simmer until slightly thickened. Stir in Dijon mustard, garlic powder, salt, and pepper. Remove from heat and stir in half the Swiss cheese.

Step 3: Assemble the Casserole
Spread shredded chicken evenly in the prepared dish. Add a layer of diced ham. Pour the creamy sauce over the top, then sprinkle with the remaining Swiss cheese and mozzarella.

Step 4: Add the Topping
In a small bowl, mix breadcrumbs, melted butter, and Parmesan. Sprinkle evenly over the casserole.

Step 5: Bake
Bake for 25–30 minutes, or until the top is golden brown and bubbly.

Step 6: Serve & Enjoy
Let it cool slightly before serving. Pair it with a simple green salad or roasted veggies.

If you like rich, comforting meals, this casserole is every bit as satisfying as my Old-Fashioned Southern Meatloaf.

Tips for Perfect Chicken Cordon Bleu Casserole

  • Use rotisserie chicken: Saves time and keeps things juicy.
  • Don’t skip Dijon: It adds that signature cordon bleu tang.
  • Cheese choice matters: Swiss gives the best flavor balance.
  • Make ahead: Assemble and refrigerate, then bake before serving.

Little details like these are the same ones that make my Cajun Potato Soup turn out perfectly every single time.

How to Store and Reheat

Refrigerate: Store leftovers in an airtight container for up to 4 days.
Freeze: Wrap tightly and freeze for up to 2 months. Thaw in the fridge overnight before reheating.
Reheat: Warm in a 325°F oven until heated through.

Like my Christmas Bread Recipe, this dish reheats beautifully and is even better the next day.

Flavor Variations

  1. Bacon Lovers’ Version: Add crispy bacon bits to the topping.
  2. Broccoli Cordon Bleu: Add steamed broccoli for color and flavor.
  3. Low-Carb Option: Skip breadcrumbs and top with extra cheese.
  4. Extra Creamy: Stir in a bit of cream cheese to the sauce.

If you love giving classics a new twist, my Beef and Chickpea Skillet delivers that same easy upgrade.

Frequently Asked Questions

1. Can I use deli ham instead of cubed ham?
Yes — just chop it into bite-sized pieces.

2. Can I use a different cheese?
Mozzarella, Gruyère, or Monterey Jack all work well.

3. Can I make it ahead?
Absolutely! Assemble it the night before, cover, and bake the next day.

4. Can I use low-fat milk?
You can, but it won’t be as rich. Whole milk or 2% gives the best texture.

The Final Bite

This Chicken Cordon Bleu Casserole is everything you love about the classic dish — creamy, cheesy, and comforting but in a simple, family-friendly bake. It’s warm, satisfying, and guaranteed to make everyone at the table happy.

Serve it with a crisp salad or my Cranberry Apple Coleslaw for a balanced, feel-good meal that brings elegance and ease together in one dish.

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