Stepping into my cozy kitchen, the enticing aroma of savory ham and succulent chicken fills the air, whisking me away to family gatherings and comforting dinners. Our easy Chicken Cordon Bleu Casserole combines the best of both worlds—delicious comfort food that doesn’t compromise on simplicity. With prep that’s a breeze and the ability to make it ahead of time, this dish is perfect for those busy weeknights when cooking feels daunting. Imagine delighting your loved ones with a bubbling casserole, all while saving precious moments for what truly matters. Curious to discover how to whip up this crowd-pleaser in no time? Let’s dive into the details!

Why is this casserole a must-try?
Ease of Preparation: With just a few simple ingredients, this casserole comes together in no time, making it ideal for busy weeknights.
Comforting Layers: The combination of tender chicken, savory ham, and gooey Swiss cheese wrapped in a creamy sauce is pure bliss, reminiscent of classic comfort food like Chicken and Rice Casserole but with a unique twist.
Crowd-Pleasing Delight: This dish is perfect for families, and it’s a sure hit at gatherings, leaving your guests asking for seconds!
Endless Variations: Feel free to customize with different cheeses or add nutritious vegetables like broccoli to make it your own.
Make-Ahead Magic: Prep it a day in advance and simply bake when ready! Ideal for meal prepping or unexpected guests. Enjoy the delicious flavors without the hassle!
Chicken Cordon Bleu Casserole Ingredients
• Dive into the deliciousness with these must-have ingredients!
For the Base
• Cooked Chicken (3 cups) – A time-saver; shredded rotisserie chicken works perfectly.
• Cooked Ham (1.5 cups) – Boosts flavor and heartiness; opt for quality ham for best taste.
• Shredded Swiss Cheese (2 cups, divided) – Adds creamy richness; consider Gruyere or provolone as tasty substitutes.
For the Creamy Sauce
• Sour Cream (0.5 cup) – Infuses creaminess and tangy notes.
• Milk (0.25 cup) – Balances the mixture for ideal consistency.
• Dijon Mustard (1 tbsp) – Elevates flavor with a touch of zest.
• Garlic Powder (0.5 tsp) – Imparts a gentle garlic flavor.
• Onion Powder (0.5 tsp) – Offers a savory foundation to the dish.
• Salt and Pepper – Essential for enhancing all the flavor profiles.
For the Topping
• Bread Crumbs (0.5 cup, optional) – Sprinkle for a delightful crunch; choose plain or seasoned as desired.
• Melted Butter (2 tbsp, optional) – Adds richness and extra flavor to the topping.
Let’s get ready to whip up this Chicken Cordon Bleu Casserole that will wow your family and friends!
Step‑by‑Step Instructions for CHICKEN CORDON BLEU CASSEROLE
Step 1: Preheat and Prepare Baking Dish
Begin by preheating your oven to 350°F (175°C). While the oven warms, grab a 9×13 inch baking dish and lightly grease it with cooking spray or butter to prevent sticking. This ensures your chicken cordon bleu casserole will slide out easily once it’s baked and bubbling with deliciousness.
Step 2: Combine Chicken, Ham, and Cheese
In a large mixing bowl, add the 3 cups of cooked, shredded chicken and 1.5 cups of diced ham. Then, sprinkle in 1.5 cups of shredded Swiss cheese. Gently fold these ingredients together until they’re evenly mixed. This colorful blend sets the foundation for your comforting casserole, encouraging warmth and flavor all around.
Step 3: Whisk Together the Creamy Sauce
In a separate medium bowl, whisk together 0.5 cup of sour cream, 0.25 cup of milk, and 1 tablespoon of Dijon mustard. Add in 0.5 teaspoon each of garlic powder and onion powder, along with salt and pepper to taste. Stir until the mixture is smooth and creamy; this luscious sauce will bind the casserole and elevate the flavors beautifully.
Step 4: Combine Mixtures
Pour the creamy sauce over the chicken, ham, and cheese mixture in the large bowl. Stir gently to ensure everything is thoroughly coated. This step is crucial to achieving that comforting, creamy texture characteristic of a perfect chicken cordon bleu casserole.
Step 5: Transfer and Spread
Carefully transfer the combined mixture into your prepared baking dish, spreading it out evenly with a spatula. Make sure the chicken, ham, and cheese are well-distributed across the surface to ensure even cooking. This layer creates the heart of the casserole that everyone loves.
Step 6: Add the Final Cheese Layer
Top your casserole with the remaining 0.5 cup of shredded Swiss cheese, sprinkling it generously across the mixture. For a delightful crunch, consider adding optional bread crumbs over the cheese, drizzling them with 2 tablespoons of melted butter if you like. This topping will create a golden, crisp layer as it bakes.
Step 7: Bake to Perfection
Place the casserole in the preheated oven and bake for 25–30 minutes. Keep an eye on it; when the cheese is melted, bubbly, and lightly golden, it’s time to take it out! This visual cue indicates that your chicken cordon bleu casserole is ready to serve, filled with mouthwatering flavors.
Step 8: Cool and Serve
Once baked, remove the casserole from the oven and let it cool for about 5-10 minutes before serving. This brief rest allows the dish to set, making it easier to scoop out portions. Now you’re ready to share this delightful chicken cordon bleu casserole with family and friends!

Expert Tips for Chicken Cordon Bleu Casserole
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Quality Counts: Use high-quality ham and Swiss cheese—this guarantees a rich flavor that elevates your chicken cordon bleu casserole beyond average fare.
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Avoid Overbaking: Keep an eye on the casserole towards the end of baking. If the top browns too quickly, cover it loosely with foil to prevent burning.
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Add Some Crunch: For an irresistible topping, mix in bread crumbs with melted butter. This adds a delightful texture that contrasts with the creamy filling.
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Vegetable Boost: Don’t shy away from adding sautéed vegetables like broccoli or mushrooms for extra nutrition and a pop of color in your chicken cordon bleu casserole.
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Plan Ahead: Make it a make-ahead meal by assembling it up to 24 hours in advance. Just let it sit in the fridge and bake when you’re ready, simplifying your busy evenings!
How to Store and Freeze Chicken Cordon Bleu Casserole
Fridge: Store leftovers in an airtight container for up to 3 days. Make sure it’s cooled to room temperature before sealing to prevent moisture buildup.
Freezer: For longer storage, freeze the casserole before baking it. Wrap it tightly in plastic wrap and foil for up to 3 months. Thaw in the fridge overnight before baking.
Reheating: To reheat, warm in the oven at 350°F (175°C) until heated through, about 20-25 minutes. Alternatively, microwave individual portions for a quick meal.
Make-Ahead: You can assemble the Chicken Cordon Bleu Casserole a day in advance, store it in the refrigerator, and bake it when needed for effortless dinner prep!
Make Ahead Options
This Chicken Cordon Bleu Casserole is perfect for meal prep enthusiasts! You can assemble the entire casserole up to 24 hours in advance, allowing flavors to meld beautifully overnight. To prep ahead, combine the chicken, ham, and cheese in one bowl, and whisk together the creamy sauce in another. Store both components in the refrigerator in airtight containers. Just before baking, combine them in your prepared baking dish and top with cheese and optional breadcrumbs. When you’re ready to serve, simply bake for an added 5-10 minutes to ensure it’s heated through and bubbly. This way, you enjoy delicious, homemade comfort food with minimal hassle on busy weeknights!
What to Serve with Chicken Cordon Bleu Casserole
Enhance your family dinner experience with delightful pairings that complement the rich flavors of this comforting casserole.
- Creamy Mashed Potatoes: Silky and buttery, these mashed potatoes offer a perfect contrast to the casserole’s creamy texture.
- Steamed Broccoli: Fresh and vibrant, steamed broccoli adds a nutritious crunch that balances the richness of the casserole. Pairing it brings a pop of color and health.
- Caesar Salad: Crisp romaine, crunchy croutons, and tangy dressing create a refreshing contrast to the savory casserole, making every bite a new experience.
- Garlic Bread: Warm, crusty garlic bread perfectly complements the dish, providing the opportunity to scoop up every bit of that creamy goodness.
- Herbed Rice Pilaf: Light and fragrant, herbed rice pilaf brings an aromatic touch that beautifully complements the layered flavors of the casserole.
- Sparkling Lemonade: This zesty drink adds a refreshing burst of flavor that contrasts the richness of the Chicken Cordon Bleu Casserole, making it feel special.
- Chocolate Mousse Cups: For dessert, these indulgent cups provide a delightful sweet finish, leaving your family smiling and satisfied after your rich dinner.
Chicken Cordon Bleu Casserole Variations
Feel free to make this Chicken Cordon Bleu Casserole your own with these delightful twists that will bring your flavors to life!
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Cheese Swap: Replace Swiss cheese with Gruyere, provolone, or mozzarella for a unique twist! Each cheese brings its own delicious identity to the dish, enhancing its creamy texture and taste.
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Veggie Boost: Add sautéed mushrooms, broccoli florets, or asparagus for extra nutrition and color. These fresh ingredients not only enhance the taste but also add a lovely crunch and vitality to your casserole.
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Creamy Sauce Twist: Mix in a different creamy sauce such as Alfredo or cream of mushroom for added depth. Experimenting with sauces can create a completely different flavor profile while keeping the comforting essence intact.
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Spicy Kick: For those who like a little heat, sprinkle red pepper flakes or diced jalapeños. This captivating twist makes every bite exciting and satisfies spicy cravings without overpowering the dish.
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Pasta Addition: Incorporate cooked pasta like rotini or penne into the mix for a heartier casserole. The pasta will soak up all those yummy flavors, giving the dish a pasta bake vibe that’s perfect for pasta lovers!
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Flavor Infusion: Add fresh herbs such as thyme or parsley to the creamy sauce for an aromatic touch. This addition will elevate the overall flavor profile, adding freshness and brightness.
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Crunchy Topping: For a unique texture, consider mixing crushed crackers or crispy onions into the topping. This otherwise simple detail can give your casserole an enticing crunch that’s irresistible!
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Serve with Allies: Pair your casserole with a vibrant salad or roasted vegetables to balance the richness. A simple green salad with a light vinaigrette will add freshness, making your meal well-rounded and satisfying.
This Chicken Cordon Bleu Casserole is full of potential, just like our other comforting dishes such as French Onion Chicken or Chicken and Stuffing Casserole. Embrace your creativity and make it uniquely yours!

Chicken Cordon Bleu Casserole Recipe FAQs
What type of chicken works best in this casserole?
Absolutely! I recommend using cooked rotisserie chicken for convenience, as it saves you time and adds great flavor. Just shred or dice it into bite-sized pieces, making sure you have about 3 cups to create a deliciously hearty base for your Chicken Cordon Bleu Casserole.
How long can I store leftovers in the fridge?
Leftovers can be stored in an airtight container for up to 3 days. Ensure the casserole has cooled to room temperature before sealing it. This method prevents moisture buildup and keeps it fresh for your next meal! It’s perfectly delicious reheated, so don’t hesitate to savor those leftovers!
Can I freeze the Chicken Cordon Bleu Casserole?
You certainly can! For freezing, I recommend assembling the casserole without baking it. Wrap it tightly in plastic wrap and then in foil to prevent freezer burn. It can stay frozen for up to 3 months. When you’re ready to enjoy it, simply thaw it in the fridge overnight and bake as directed for that bubbly, comforting goodness!
What can I do if the casserole is too dry after baking?
If your casserole seems a bit dry after baking, it could be due to overbaking or using lean meats. To fix it, consider adding a splash of chicken broth or cream before you bake it next time. This little trick will ensure your Chicken Cordon Bleu Casserole stays moist and creamy, so every bite is full of flavor!
Is this casserole suitable for someone with dietary restrictions?
Yes, with a few adjustments, it can suit different dietary needs! For gluten-free options, simply use gluten-free bread crumbs. If you’re avoiding dairy, try substituting the cheese with a dairy-free alternative, and use coconut milk in place of regular milk and sour cream. These modifications can help adapt the Chicken Cordon Bleu Casserole to cater to various dietary preferences while still keeping it delicious!

Chicken Cordon Bleu Casserole: Comfort Food Made Easy
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and lightly grease a 9x13 inch baking dish.
- In a large mixing bowl, combine 3 cups of cooked, shredded chicken, 1.5 cups of diced ham, and 1.5 cups of shredded Swiss cheese.
- Whisk together 0.5 cup of sour cream, 0.25 cup of milk, and 1 tablespoon of Dijon mustard in a separate bowl. Add 0.5 teaspoon each of garlic powder and onion powder, with salt and pepper to taste. Stir until smooth.
- Pour the creamy sauce over the chicken, ham, and cheese mixture and stir gently until everything is thoroughly coated.
- Transfer the mixture into the prepared baking dish and spread it out evenly with a spatula.
- Top with the remaining 0.5 cup of shredded Swiss cheese and optionally sprinkle with bread crumbs and drizzle with melted butter.
- Bake for 25-30 minutes until melted, bubbly, and lightly golden.
- Let the casserole cool for 5-10 minutes before serving.

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