Best Chicken Cordon Bleu Casserole

If you love classic Chicken Cordon Bleu but don’t love the prep, this Chicken Cordon Bleu Casserole is about to win your heart. It takes everything you adore about the traditional dish—tender chicken, savory ham, and melty Swiss cheese—and transforms it into an easy, oven-baked casserole perfect for busy weeknights. Creamy, cheesy, and deeply comforting, this deconstructed version delivers big flavor with minimal effort, making it ideal for family dinners, potlucks, or cozy nights at home.

Why You’ll Love This Recipe

• All the flavors of Chicken Cordon Bleu with none of the fuss
• Creamy, cheesy, and incredibly satisfying
• Perfect make-ahead meal for busy schedules
• Family-friendly and great for leftovers
• Easy to customize with different cheeses or veggies

Ingredients

• Cooked chicken (3 cups, shredded or cubed): Tender protein base, perfect for using leftovers or rotisserie chicken
• Cooked ham (1½ cups, diced): Savory, salty flavor that defines cordon bleu
• Swiss cheese (2 cups, shredded, divided): Classic nutty, melty cheese
• Sour cream (½ cup): Adds creaminess and slight tang
• Milk (¼ cup): Helps loosen the sauce for a smooth texture
• Cream of chicken soup (1 can): Rich, comforting base for the casserole sauce
• Dijon mustard (1 tbsp): Signature cordon bleu flavor
• Garlic powder (½ tsp): Subtle savory depth
• Onion powder (½ tsp): Enhances overall flavor
• Salt & pepper (to taste): Balances the dish
• Bread crumbs (½ cup, optional): Adds a crunchy topping
• Melted butter (2 tbsp, optional): Helps brown the topping

How to Make Chicken Cordon Bleu Casserole

Step 1: Prep the Oven and Dish

Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish and set aside.

Step 2: Combine Chicken, Ham, and Cheese

In a large mixing bowl, combine the cooked chicken, diced ham, and 1½ cups of the shredded Swiss cheese. Mix gently to distribute evenly.

Step 3: Make the Creamy Sauce

In a separate bowl, whisk together the cream of chicken soup, sour cream, milk, Dijon mustard, garlic powder, onion powder, salt, and pepper until smooth and creamy.

Step 4: Assemble the Casserole

Pour the sauce over the chicken and ham mixture. Stir gently until everything is well coated. Transfer the mixture to the prepared baking dish and spread it evenly.

Step 5: Add Topping

Sprinkle the remaining ½ cup Swiss cheese over the top. If using, mix bread crumbs with melted butter and sprinkle evenly over the cheese layer.

Step 6: Bake

Bake uncovered for 25–30 minutes, until the casserole is hot throughout and the cheese is melted and bubbly. Let it rest for a few minutes before serving.

Tips for Success

• Use good-quality ham and cheese for the best flavor
• Don’t overbake; the casserole should be creamy, not dry
• If the topping browns too quickly, loosely tent with foil
• Let the casserole cool slightly so it sets before slicing

Equipment Needed

• 9×13-inch baking dish
• Large mixing bowl
• Small mixing bowl
• Measuring cups and spoons
• Whisk
• Mixing spoon or spatula
• Oven

Recipe Variations

• Cheese Swap: Try Gruyère for a richer, more traditional flavor
• Veggie Boost: Add sautéed mushrooms, broccoli florets, or asparagus tips
• Low-Carb Option: Skip the bread crumbs and serve with roasted vegetables
• Extra Creamy: Add a splash more milk or sour cream

Serving Suggestions

• Serve with steamed green beans or broccoli
• Pair with a crisp green salad
• Add roasted potatoes or rice on the side
• Enjoy with crusty bread to soak up the sauce

FAQs

Can I make this casserole ahead of time?
Yes, assemble up to 24 hours in advance, cover, and refrigerate. Bake when ready.

How do I store leftovers?
Store in an airtight container in the refrigerator for up to 3 days.

Can I freeze Chicken Cordon Bleu Casserole?
Yes, freeze before or after baking for up to 2 months. Thaw overnight before reheating.

Can I use different cheese?
Absolutely. Gruyère, provolone, or mozzarella all work well.

What’s the best chicken to use?
Leftover roasted chicken or rotisserie chicken is ideal and saves time.

Final Thoughts

This Chicken Cordon Bleu Casserole is the perfect example of comfort food made easy. Creamy, cheesy, and packed with classic flavors, it’s a stress-free way to enjoy a timeless dish any night of the week. Whether you’re feeding a hungry family or planning meals ahead, this casserole is sure to become a regular on your dinner table. Give it a try and enjoy every comforting bite.

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