This Chicken Cordon Bleu Casserole delivers all the gourmet elegance of classic French Chicken Cordon Bleu without any tedious pounding, stuffing, or rolling! Tender chunks of juicy cooked chicken and savory smoky ham are smothered in a rich scratch-made Dijon cream sauce, topped with melted Swiss cheese, and baked under a golden, buttery toasted panko breadcrumb crust.
Every bite delivers the perfect balance of rich savory poultry, salty cured ham, nutty Swiss cheese, tangy French Dijon, and irresistible crispy crunch. It’s an effortless 30-minute family bake that feels like fine dining.
Why You'll Love This Recipe
- All the classic Cordon Bleu flavor in an effortless dump-and-bake casserole!
- No rolling, pounding, or toothpicks required
- Uses leftover cooked chicken, rotisserie chicken, or holiday ham for effortless 10-minute prep
- Rich scratch-made Dijon cream sauce with NO canned condensed soup!
If you love creamy comforting chicken bakes like our French Onion Chicken Casserole or our Cheesy Broccoli Chicken Casserole, this Chicken Cordon Bleu Casserole is a must-try.
Key Ingredients & Smart Substitutions
Here are the simple, gourmet ingredients that make this casserole so extraordinary:
- Cooked Chicken: 4 cups cooked chicken breast, diced or shredded (rotisserie chicken works wonderfully).
- Diced Ham: 2 cups cooked smoky ham, diced into bite-sized cubes.
- Swiss Cheese: 6 to 8 slices (or 1.5 cups shredded) Swiss or Gruyère cheese for classic nutty richness.
- Dijon Mustard: 2 tablespoons smooth Dijon mustard for authentic French tanginess.
- Heavy Cream & Chicken Broth: 1 cup heavy cream and 1/2 cup low-sodium chicken broth for a silky sauce base.
- Butter & Flour: 3 tablespoons unsalted butter and 2 tablespoons flour to thicken the roux.
- Panko Breadcrumbs: 1 cup Japanese panko breadcrumbs tossed in 2 tablespoons melted butter for maximum crunch.
- Garlic & Seasonings: 3 cloves minced garlic, onion powder, kosher salt, and freshly cracked black pepper.
How to Make Chicken Cordon Bleu Casserole (Step-by-Step)
1. Whisk the Creamy Dijon Sauce: Preheat oven to 375°F (190°C). In a saucepan over medium heat, melt 2 tablespoons butter and sauté minced garlic for 1 minute. Whisk in 2 tablespoons flour and cook for 1 minute. Slowly whisk in chicken broth and heavy cream until smooth. Stir in Dijon mustard, salt, and pepper, and simmer for 2 to 3 minutes until thick and velvety.
2. Layer Chicken, Ham & Sauce: In a 9×13-inch or rectangular ceramic baking dish, spread the diced chicken and diced ham in an even layer. Pour the warm creamy Dijon sauce evenly over the top, gently tossing so every bite is coated.
3. Top with Swiss Cheese & Panko: Arrange the Swiss cheese slices evenly over the casserole. In a small bowl, toss panko breadcrumbs with 2 tablespoons melted butter. Sprinkle the buttered panko evenly over the cheese layer.
4. Bake to Golden & Bubbly: Bake uncovered for 20 to 25 minutes until the sauce is bubbling vigorously around the edges and the panko crust is deep golden brown and crunchy.
5. Rest and Serve: Let rest for 5 minutes before serving. Garnish with fresh chopped parsley and serve warm!
Chef's Helpful Tips
- Low-Carb / Keto adaptation: Swap the panko breadcrumbs for crushed pork rinds or grated parmesan cheese, and this dish becomes 100% keto-friendly!
- Don’t skip the Dijon: Dijon mustard provides that quintessential Cordon Bleu sharpness that balances the rich cream and salty ham
What to Serve with Cordon Bleu Casserole
- Steamed Veggies: Roasted green beans, steamed broccoli florets, or buttered sweet peas.
- Grains & Noodles: Buttered egg noodles, white rice pilaf, or mashed potatoes.
- Crusty Bread: Warm French baguette slices to dip into the rich Dijon cream sauce.
Storage & Reheating Instructions
To Store: Store leftover casserole tightly covered in the refrigerator for up to 4 days.
To Reheat: Reheat in a 350°F (175°C) oven for 10-15 minutes to re-crisp the panko crust. Microwaving is convenient but will soften the crunchy topping.
Frequently Asked Questions
Can I make this ahead of time?
Yes! Assemble the chicken, ham, sauce, and Swiss cheese in the baking dish up to 24 hours in advance. Keep the buttered panko separate and sprinkle right before baking.
Can I use deli ham?
Yes! Thick-cut deli ham or leftover holiday spiral ham works wonderfully.
More Comforting Family Casseroles to Try Next
- French Onion Chicken Casserole — Tender chicken smothered in caramelized onions and melted Gruyère.
- Cheesy Broccoli Chicken Casserole — A wholesome low-carb comfort bake with fresh broccoli and cheddar.
- Longhorn Parmesan Crusted Chicken — Restaurant-style chicken with garlic ranch and crispy panko crust.
Chicken Cordon Bleu Casserole
- Total Time: 35 minutes
- Yield: 6 servings 1x
Description
Chicken Cordon Bleu Casserole is a comforting and delicious dish that combines tender chicken, savory ham, and melted Swiss cheese, all baked to golden perfection. This easy-to-make casserole is perfect for family dinners or impressing guests at gatherings. Its irresistible aroma fills your kitchen and invites everyone to the table for an unforgettable meal.
Ingredients
- 4 cups cooked chicken breast, diced or shredded
- 2 cups cooked ham, diced
- 6–8 slices Swiss cheese (or 1.5 cups shredded)
- 1 cup panko breadcrumbs
- 2 tablespoons unsalted butter, melted (for panko)
- 2 tablespoons unsalted butter (for sauce)
- 2 tablespoons all-purpose flour
- 1 cup heavy cream
- 1/2 cup low-sodium chicken broth
- 2 tablespoons Dijon mustard
- 3 cloves garlic, minced
- 1/2 teaspoon kosher salt
- 1/4 teaspoon freshly ground black pepper
- 2 tablespoons chopped fresh parsley (for garnish)
Instructions
- Make Dijon Sauce: Preheat oven to 375°F (190°C). Melt 2 tbsp butter in saucepan and sauté garlic for 1 min. Whisk in flour for 1 min. Slowly whisk in broth, cream, and Dijon mustard. Simmer 2-3 mins until velvety smooth.
- Layer Casserole: Spread diced chicken and diced ham in a baking dish. Pour warm Dijon cream sauce evenly over top and toss lightly.
- Top with Cheese & Panko: Layer Swiss cheese slices over the casserole. Toss panko with 2 tbsp melted butter and scatter over cheese.
- Bake to Golden: Bake uncovered for 20 to 25 minutes until sauce is bubbling and panko is crispy golden brown.
- Garnish & Serve: Garnish with fresh parsley and serve warm!
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Category: Main
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cup (200g)
- Calories: 380
- Sugar: 3g
- Sodium: 800mg
- Fat: 18g
- Saturated Fat: 8g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 2g
- Protein: 30g
- Cholesterol: 90mg
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