Best Chicken Cordon Bleu Casserole Recipe
Introduction
This Best Chicken Cordon Bleu Casserole is a comforting twist on the classic dish, combining tender chicken, savory ham, and Swiss cheese in a creamy baked casserole. It’s easy to prepare and perfect for a satisfying family meal.

Ingredients
- 3 cups cooked chicken, shredded or cubed
- 1 1/2 cups cooked ham, diced
- 2 cups shredded Swiss cheese, divided
- 1/2 cup sour cream
- 1/4 cup milk
- 1 tablespoon Dijon mustard
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- Salt and pepper to taste
- 1/2 cup bread crumbs, plain or seasoned (optional)
- 2 tablespoons melted butter (optional)
Instructions
- Step 1: Preheat oven to 350°F (175°C). Grease a 9×13 inch baking dish.
- Step 2: In a large mixing bowl, combine the cooked chicken, ham, and 1 1/2 cups of the Swiss cheese.
- Step 3: In a separate bowl, whisk together sour cream, milk, Dijon mustard, garlic powder, onion powder, salt, and pepper until smooth.
- Step 4: Pour the sour cream mixture over the chicken and ham mixture. Stir gently to combine, ensuring everything is well coated.
- Step 5: Pour the mixture into the prepared baking dish. Spread it evenly.
- Step 6: Sprinkle the remaining 1/2 cup of Swiss cheese over the top of the casserole.
- Step 7: In a small bowl, combine the bread crumbs and melted butter (if using). Sprinkle this mixture evenly over the cheese.
- Step 8: Bake for 25-30 minutes, or until the casserole is heated through and the cheese is melted and bubbly.
- Step 9: Let the casserole cool for a few minutes before serving.
Tips & Variations
- Use seasoned bread crumbs for a more flavorful topping or omit them for a lighter casserole.
- Substitute turkey for chicken and ham to vary the flavors.
- Add a handful of spinach or broccoli florets to sneak in some greens.
- For extra creaminess, stir in a little cream cheese into the sour cream mixture.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave or warm the entire casserole covered with foil in a 350°F oven until heated through.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use leftover cooked chicken for this casserole?
Yes, leftover cooked chicken works perfectly. Just make sure it is fully cooked and shredded or cubed before mixing.
Is it necessary to use bread crumbs and butter topping?
No, the bread crumb and butter topping is optional but adds a nice crunchy texture and extra flavor to the casserole.
PrintBest Chicken Cordon Bleu Casserole Recipe
This Best Chicken Cordon Bleu Casserole is a hearty, comforting dish that combines tender cooked chicken, savory ham, and melted Swiss cheese in a creamy, flavorful sauce. Baked to golden perfection with a crispy breadcrumb topping, it’s an easy twist on the classic chicken cordon bleu, perfect for family dinners or potlucks.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 6 servings 1x
- Category: Casserole
- Method: Baking
- Cuisine: American
Ingredients
Main Ingredients
- 3 cups cooked chicken, shredded or cubed
- 1 1/2 cups cooked ham, diced
- 2 cups shredded Swiss cheese, divided
- 1/2 cup sour cream
- 1/4 cup milk
- 1 tablespoon Dijon mustard
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- Salt and pepper to taste
Topping (Optional)
- 1/2 cup bread crumbs, plain or seasoned
- 2 tablespoons melted butter
Instructions
- Preheat and Prepare Dish: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish thoroughly to prevent sticking.
- Combine Proteins and Cheese: In a large mixing bowl, mix together the shredded or cubed cooked chicken, diced ham, and 1 1/2 cups of the shredded Swiss cheese, ensuring an even blend.
- Mix Sauce Ingredients: In a separate bowl, whisk together sour cream, milk, Dijon mustard, garlic powder, onion powder, salt, and pepper until the mixture is smooth and well combined.
- Combine Sauce with Meat Mixture: Pour the sauce mixture over the chicken, ham, and cheese mixture. Stir gently until all ingredients are evenly coated with the creamy sauce.
- Assemble in Baking Dish: Transfer the combined mixture into the prepared baking dish and spread it out evenly for uniform baking.
- Add Cheese Topping: Sprinkle the remaining 1/2 cup of shredded Swiss cheese evenly over the top of the casserole.
- Prepare and Add Breadcrumb Topping: In a small bowl, mix the bread crumbs with melted butter until the crumbs are evenly coated. Sprinkle this breadcrumb mixture evenly over the cheese layer for a crispy finish.
- Bake the Casserole: Place the casserole in the preheated oven and bake for 25-30 minutes, until the casserole is heated through, cheese is melted, and the topping is golden and bubbly.
- Rest and Serve: Remove the casserole from the oven and let it cool for a few minutes before serving to allow the flavors to settle and to make serving easier.
Notes
- You can substitute the Swiss cheese with Gruyère or mozzarella for a different flavor profile.
- If you prefer a gluten-free option, use gluten-free bread crumbs or omit the breadcrumb topping entirely.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
- To make preparation faster, use rotisserie chicken or leftover cooked chicken.
- Adding a pinch of nutmeg to the sauce mixture can enhance the flavor with a subtle warmth.
Keywords: chicken cordon bleu casserole, easy chicken casserole, baked chicken cordon bleu, Swiss cheese casserole, dinner casserole recipes

