As I stood in my kitchen last week, the comforting aroma of melting cheese wafted around me and instantly transported me back to family dinners growing up. Enter the Easy Chicken Cordon Bleu Casserole—a delightful twist on the classic dish that combines the goodness of chicken, ham, and Swiss cheese into a single, easy-to-prepare meal. This casserole not only simplifies the cooking process but also provides a heartwarming comfort that makes it perfect for busy weeknights or when you want to impress guests without spending hours in the kitchen. And the best part? It’s a versatile recipe, allowing you to use leftover chicken or ham and customize it with your favorite veggies or cheese choices. Are you ready to discover how this cozy casserole can bring your family together around the dinner table?

Why Is This Casserole So Special?
Simplicity at its finest: This Chicken Cordon Bleu Casserole is a breeze to make, perfect for both novice and seasoned cooks.
Comforting flavors come together beautifully, with savory chicken, ham, and melty Swiss cheese creating a dish that feels like a warm hug.
Customizable options let you play around with different cheeses or add your favorite veggies, ensuring every bite is uniquely yours.
Make-ahead magic means you can whip this up in advance and simply bake when you’re ready, making weeknight dinners stress-free.
Crowd-pleaser guaranteed: This casserole appeals to everyone, turning family dinners into cherished moments and erasing the need for fast food takeout.
Whether paired with a light salad or all on its own, this dish promises heartwarming satisfaction!
Chicken Cordon Bleu Casserole Ingredients
For the Casserole
- Cooked Chicken – 3 cups, shredded or cubed; this is your main protein, so use leftover or rotisserie chicken for convenience.
- Cooked Ham – 1 ½ cups, diced; adds flavor and richness, so opt for good quality ham for the best taste.
- Shredded Swiss Cheese – 2 cups, divided; this provides creaminess and a melty texture; Gruyere cheese can be a richer substitute.
- Sour Cream – ½ cup; it adds creaminess and tanginess to the dish.
- Milk – ¼ cup; this contributes to the sauce’s creamy consistency.
- Dijon Mustard – 1 tablespoon; it adds a subtle tang that perfectly complements the flavors.
- Garlic Powder – ½ teaspoon; enhances overall flavor depth.
- Onion Powder – ½ teaspoon; provides added savory flavor.
- Salt and Pepper – to taste; essential for seasoning to bring all the flavors together.
For the Topping
- Bread Crumbs – ½ cup, optional; these provide a crunchy topping—use plain or seasoned for added flavor.
- Melted Butter – 2 tablespoons, optional; mixing this with bread crumbs adds additional richness and texture.
Step‑by‑Step Instructions for Chicken Cordon Bleu Casserole
Step 1: Preheat and Prepare
Begin by preheating your oven to 350°F (175°C). While it warms up, grease a generous 9×13 inch baking dish with cooking spray or a little butter to ensure easy removal after baking. This step is crucial for creating that delightful, crispy bottom for your Chicken Cordon Bleu Casserole.
Step 2: Combine Chicken and Ham
In a large mixing bowl, combine 3 cups of shredded or cubed cooked chicken and 1 ½ cups of diced cooked ham. Gently mix them together until they’re well-distributed, letting the flavors start to mingle. The chicken will provide the protein base while the ham introduces a savory richness that makes the casserole sing.
Step 3: Make the Creamy Sauce
In a separate bowl, whisk together ½ cup sour cream, ¼ cup milk, 1 tablespoon Dijon mustard, ½ teaspoon garlic powder, ½ teaspoon onion powder, and salt and pepper to taste. Aim for a smooth consistency as you blend these ingredients. This creamy sauce is the heart of the Chicken Cordon Bleu Casserole, enhancing the entire dish’s flavor.
Step 4: Mix and Coat
Pour the creamy mixture over the chicken and ham, stirring gently but thoroughly to ensure every piece is well-coated with the sauce. This is where the magic happens, as the flavors meld together. Take a moment to admire how the sauce transforms the mixture into a luscious filling, ready for the oven.
Step 5: Assemble in the Baking Dish
Transfer the combined chicken, ham, and sauce mixture into your prepared baking dish, spreading it evenly across the bottom. As you level it out, think of how comforting this Chicken Cordon Bleu Casserole will be once it’s baked to perfection, with its creamy filling creating a delightful base for the cheese topping.
Step 6: Add the Swiss Cheese
Sprinkle 1 ½ cups of shredded Swiss cheese evenly over the top of the casserole. As the cheese melts during baking, it will create a deliciously gooey layer that binds everything together. The visual of this cheesy goodness is sure to excite your taste buds even before it goes in the oven!
Step 7: Optional Crunchy Topping
If you’re looking for that extra texture, mix ½ cup of bread crumbs with 2 tablespoons of melted butter in a small bowl. Toss them to coat before sprinkling this mixture over the cheese layer. This optional step adds a delightful crunch that perfectly contrasts with the creamy filling of the Chicken Cordon Bleu Casserole.
Step 8: Bake to Perfection
Carefully place the baking dish in your preheated oven and bake for 25-30 minutes. Keep an eye on it, and when the cheese is bubbly and golden brown, you’ll know it’s ready. The enticing aroma will fill your kitchen, beckoning everyone to gather around for a hearty meal.
Step 9: Cool and Serve
Once you’ve removed the Chicken Cordon Bleu Casserole from the oven, allow it to cool for a few minutes. This rest period helps the casserole set, making it easier to serve. As you get ready to scoop out portions, take a moment to enjoy the comforting sight of this homemade dish, brimming with warmth and flavors!

What to Serve with Chicken Cordon Bleu Casserole?
Gather the family around the table with these delightful pairings that will enhance your cozy casserole experience.
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Garlic Green Beans: Their crisp-tender texture and fresh flavor act as a perfect counterbalance to the rich, cheesy casserole.
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Caesar Salad: Crisp romaine lettuce dressed in creamy dressing adds a refreshing crunch, making each bite more delightful and light.
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Creamy Mashed Potatoes: Silky and buttery mashed potatoes provide an extra layer of comfort that pairs beautifully with the casserole’s flavors.
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Roasted Brussels Sprouts: With their slightly nutty flavor and crispy edges, roasted Brussels sprouts bring a lovely contrast that will elevate the meal.
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Honey-Glazed Carrots: The sweetness of glazed carrots harmonizes wonderfully, offering a touch of brightness to your plate.
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Homemade Garlic Bread: Crunchy on the outside and soft on the inside, garlic bread is perfect for mopping up leftover creamy sauce.
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Chardonnay: A crisp glass of Chardonnay perfectly complements the richness of the dish, enhancing your dining experience.
Each of these sides harmonizes beautifully, ensuring a heartwarming meal that will leave everyone satisfied and happy!
Chicken Cordon Bleu Casserole Variations
Feel free to let your creativity shine with these delightful twists on the classic casserole!
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Cheese Swap: Replace Swiss with Gruyere, provolone, or mozzarella for a unique flavor experience. Each cheese brings its own character, elevating your casserole to new delicious heights.
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Veggie Boost: Add sautéed mushrooms, spinach, or even broccoli for extra nutrition and color. Not only do they enhance flavor, but they also create a lovely contrast in texture.
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Herb Infusion: Incorporate fresh herbs like thyme or parsley for a fragrant touch. A sprinkle of chopped chives just before serving awakens the taste buds and adds a burst of freshness.
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Spicy Kick: Add red pepper flakes or diced jalapeños if you crave some heat. Just a sprinkle can transform this comforting dish into a spicy sensation, pleasing those who enjoy a little adventure.
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Turkey Twist: Use shredded turkey instead of chicken for a lighter, post-holiday meal. This shift not only reduces calories but also gives a familiar taste reminiscent of Thanksgiving dinners.
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Gluten-Free Option: For a gluten-free version, replace regular breadcrumbs with gluten-free breadcrumbs. Enjoy all the comforting flavors without the worry—perfect for friends or family with dietary restrictions.
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Creamy Upgrade: Use cream cheese in place of sour cream for an extra-rich and luscious sauce. This addition creates a wonderfully creamy consistency throughout the casserole, making it even more indulgent.
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Casserole Pairing: Serve alongside a light salad or steamed vegetables for a balanced meal. Dishes like Garlic Butter Chicken complement the richness wonderfully.
This Chicken Cordon Bleu Casserole adapts to your cravings and preferences, ensuring every meal is a new experience!
Storage Tips for Chicken Cordon Bleu Casserole
Fridge: Store leftover Chicken Cordon Bleu Casserole in an airtight container for up to 3 days. Make sure it cools completely before sealing to maintain texture.
Freezer: If you want to keep it longer, freeze the casserole for up to 2 months. Wrap tightly in plastic wrap and then aluminum foil for best protection against freezer burn.
Reheating: Reheat individual portions in the microwave for about 2-3 minutes or warm the entire dish in the oven at 350°F (175°C) for approximately 20-25 minutes. Cover with foil to retain moisture.
Make-Ahead: You can assemble the casserole up to 24 hours in advance, just remember to adjust baking time if it’s cold from the fridge!
Make Ahead Options
These Chicken Cordon Bleu Casserole is perfect for busy home cooks looking to save time during hectic weeknights! You can assemble the entire casserole up to 24 hours in advance by following all the steps up until the baking point, ensuring everything is well-prepped and refrigerated (cover tightly with foil or plastic wrap to maintain quality). If you’re planning to prep for the week, feel free to store leftovers in the refrigerator for up to 3 days after baking. When you’re ready to serve, simply pop it in the oven, adding a few extra minutes to the baking time to heat through. This way, you’ll enjoy the comforting flavors of a homemade casserole with minimal effort!
Expert Tips for Chicken Cordon Bleu Casserole
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Quality Ingredients: Use high-quality ham and Swiss cheese for the best flavor. Freshness makes each bite more delightful.
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Avoid Overbaking: Keep an eye on the casserole as it bakes. If the top browns too quickly, tent it with foil to prevent burning.
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Add Creamy Veggies: Enhance the casserole with sautéed vegetables like mushrooms, broccoli, or asparagus for added nutrition and flavor.
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Make-Ahead Option: Assemble the Chicken Cordon Bleu Casserole up to 24 hours in advance. Just remember to add a few extra minutes to the baking time when you’re ready to cook.
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Delicious Variations: Feel free to swap in different cheeses, like Gruyere or mozzarella, or even change up the protein to keep the dish exciting!

Chicken Cordon Bleu Casserole Recipe FAQs
What type of chicken works best for this casserole?
I recommend using cooked chicken, shredded or cubed, for the best results. Leftover or rotisserie chicken works beautifully and saves preparation time, adding to the ease of this Chicken Cordon Bleu Casserole.
How long can I store leftovers in the refrigerator?
Leftover Chicken Cordon Bleu Casserole can be stored in an airtight container for up to 3 days. Allow it to cool completely before sealing to help maintain its delicious texture.
Can this casserole be frozen?
Absolutely! You can freeze Chicken Cordon Bleu Casserole for up to 2 months. To prevent freezer burn, wrap it tightly in plastic wrap, followed by aluminum foil. When you’re ready to enjoy it, thaw in the fridge overnight before baking.
What should I do if the casserole is too dry after baking?
If you find your casserole is dry, it may be a result of overbaking. To prevent this in future bakes, tent the casserole with aluminum foil if the top is browning too quickly. If it does happen, consider adding a sprinkle of chicken broth or extra sauce on top before serving to moisten it up.
Is there a way to make this recipe gluten-free?
Certainly! To make a gluten-free Chicken Cordon Bleu Casserole, simply substitute regular breadcrumbs with gluten-free breadcrumbs or omit them completely. You’ll still achieve that creamy, comforting flavor without the gluten!
Can I include vegetables in this casserole?
Very! Adding sautéed vegetables, like broccoli or mushrooms, is a fantastic way to enhance the nutrition and flavor of your Chicken Cordon Bleu Casserole. Just make sure to cook them before mixing in for better consistency and taste!

Heavenly Chicken Cordon Bleu Casserole – Comfort in Every Bite
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking dish.
- Combine 3 cups of shredded or cubed cooked chicken and 1 ½ cups of diced cooked ham in a large mixing bowl.
- In a separate bowl, whisk together ½ cup sour cream, ¼ cup milk, 1 tablespoon Dijon mustard, ½ teaspoon garlic powder, ½ teaspoon onion powder, and salt and pepper to taste.
- Pour the creamy mixture over the chicken and ham, stirring gently to ensure every piece is well-coated.
- Transfer the mixture into your prepared baking dish, spreading it evenly across the bottom.
- Sprinkle 1 ½ cups of shredded Swiss cheese evenly over the top of the casserole.
- Mix ½ cup of bread crumbs with 2 tablespoons of melted butter and sprinkle over the cheese layer, if desired.
- Bake for 25-30 minutes until the cheese is bubbly and golden brown.
- Allow to cool for a few minutes before serving.
















