Chicken Cordon Bleu Casserole Recipe

When it comes to easy, crowd-pleasing recipes, casseroles always save the day. One of my favorites is this amazing Chicken Cordon Bleu Casserole. It’s comforting, cheesy, and packed with flavor, all while being incredibly easy to throw together. Whether you’re planning a family dinner or need something special for a potluck, this recipe checks all the boxes.

I remember the first time I made this dish. I was in a hurry, rummaging through my fridge for inspiration, and there it was: leftover chicken, a few slices of ham, and some Swiss cheese. It’s like they were begging to be turned into something amazing. A casserole was the obvious choice, and let me tell you, it’s been a household favorite ever since.

Let’s walk through this simple recipe together, and I’ll share some tips along the way to make sure your casserole turns out just right.

Ingredients

Here’s what you’ll need for this delicious Chicken Cordon Bleu Casserole:

For the Casserole:

• 2 cups cooked chicken (shredded or diced)
• 1 cup diced ham (make sure it’s fully cooked)
• 1 cup shredded Swiss cheese (or Gruyère for extra flavor)
• 1 cup shredded mozzarella cheese
• 1/4 cup grated Parmesan cheese

For the Sauce:

• 4 tablespoons unsalted butter
• 1/4 cup all-purpose flour
• 2 cups whole milk
• 1 teaspoon Dijon mustard
• 1/2 teaspoon garlic powder
• Salt and pepper to taste

For the Topping:

• 1 cup breadcrumbs (panko works great for extra crunch)
• 2 tablespoons melted butter
• 1 teaspoon dried parsley (optional, for garnish)

How to Make Chicken Cordon Bleu Casserole

Step 1: Prep Your Ingredients

Before you start, make sure all your ingredients are ready to go. Shred the chicken, dice the ham, and measure out your cheeses. Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish.

Step 2: Make the Sauce

In a medium saucepan, melt the butter over medium heat. Once it’s fully melted, whisk in the flour and cook for about 1 minute to get rid of the raw flour taste. Slowly pour in the milk, whisking constantly to avoid lumps. Bring the mixture to a simmer, stirring frequently, until it thickens. This should take about 3-5 minutes.

Stir in the Dijon mustard, garlic powder, salt, and pepper. Taste and adjust the seasonings if needed. Once the sauce is smooth and flavorful, remove it from the heat.

Step 3: Assemble the Casserole

Spread the shredded chicken evenly across the bottom of your prepared baking dish. Layer the diced ham on top, followed by the shredded Swiss cheese. Pour the creamy sauce evenly over the layers, making sure everything is well-coated.

Sprinkle the mozzarella and Parmesan cheeses over the top. Trust me, this cheesy layer is what dreams are made of!

Step 4: Add the Topping

In a small bowl, mix the breadcrumbs with the melted butter. Spread the buttery crumbs evenly over the casserole. This will give it that irresistible golden crust.

Step 5: Bake

Bake the casserole in your preheated oven for 25-30 minutes, or until the top is golden brown and the cheese is bubbling. Your kitchen will smell amazing—a sure sign that dinner is almost ready.

Tips for the Best Chicken Cordon Bleu Casserole

• Use leftover chicken: Rotisserie chicken works perfectly for this recipe and saves you extra prep time.
• Try Gruyère cheese: If you want to elevate the flavors, swap Swiss cheese for Gruyère. It’s a bit nuttier and more robust.
• Make it ahead: You can assemble the casserole up to a day in advance and refrigerate it. Just add 5-10 minutes to the baking time.
• Customize the topping: Add a sprinkle of paprika or Parmesan to the breadcrumbs for an extra flavor boost.

What to Serve with Chicken Cordon Bleu Casserole

This casserole is a meal in itself, but if you’re looking to round it out, here are some ideas:

• Steamed green beans or roasted asparagus for a fresh, vibrant side.
• Garlic bread or a simple side salad to balance the richness.
• Mashed potatoes if you’re feeling indulgent—they’re perfect for scooping up that creamy sauce.

Leftover Love

If you have leftovers (though that’s a big “if” in my house), store them in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F (175°C) until warmed through, or use the microwave if you’re in a hurry.

Final Thoughts

Chicken Cordon Bleu Casserole is the kind of recipe that brings everyone to the table. It’s simple, comforting, and packed with flavors that remind you of home. Plus, it’s versatile enough to fit into busy weeknights or special occasions.

I’d love to hear how this recipe turned out for you. Did you try any fun variations or serve it with a favorite side dish? Let me know in the comments below!

Happy cooking!