As I rummaged through my pantry, it struck me—how could I turn the beloved flavors of Chicken Cordon Bleu into something comforting yet effortless? Enter the CORDON BLEU CASSEROLE, an easy weeknight dinner that envelops tender chicken and savory ham with creamy Swiss cheese, delivering the same nostalgic taste without the fuss. This dish is a game-changer for busy families, making it not only a crowd-pleaser but also a stress-reliever in the kitchen. Plus, the make-ahead option means you can prep it in advance, allowing you to savor precious moments with your loved ones. Curious about how to put this delightful dish together? Let’s dive into the recipe!

Why is Cordon Bleu Casserole a Must-Try?
Simplicity at its core: This CORDON BLEU CASSEROLE requires minimal effort, making dinner prep a breeze. Rich, Creamy Texture: The combination of Swiss cheese and sour cream delivers indulgence in every bite. Family-Friendly: It’s a dish sure to please both kids and adults, allowing everyone to enjoy classic flavors together. Make-Ahead Convenience: Assemble it a day in advance, and have an effortless meal ready to pop in the oven when you need it. Versatile Ingredients: Feel free to add vegetables or swap cheeses to suit your family’s taste—it’s all about making it your own!
Cordon Bleu Casserole Ingredients
-
For the Casserole Mix
• Cooked Chicken (3 cups) – Main protein source providing heartiness; rotisserie chicken is recommended for convenience.
• Diced Ham (1½ cups) – Adds salty flavor and complements chicken; use quality ham for the best flavor.
• Shredded Swiss Cheese (2 cups) – Creates a creamy, gooey texture; Gruyere, provolone, or mozzarella work well as substitutes.
• Sour Cream (½ cup) – Adds creaminess and tang; Greek yogurt can be a great alternative.
• Milk (¼ cup) – Helps to create a smooth sauce; any type of milk will work.
• Dijon Mustard (1 tablespoon) – Offers a hint of pungency and depth.
• Garlic Powder (½ teaspoon) – Enhances flavor.
• Onion Powder (½ teaspoon) – Adds aromatics.
• Salt and Pepper – Season to taste. -
For the Topping
• Bread Crumbs (½ cup) – Optional topping for crunch; either plain or seasoned breadcrumbs can be used.
• Melted Butter (2 tablespoons) – Optional for mixing with breadcrumbs to enhance flavor and texture.
Let’s bring this comforting dish to life with delightful flavors that make dinner a shared experience!
Step‑by‑Step Instructions for CORDON BLEU CASSEROLE
Step 1: Preheat Your Oven
Begin by preheating your oven to 350°F (175°C). While the oven is heating, take a moment to grease a 9×13 inch baking dish with cooking spray or butter to prevent sticking. This will ensure that your CORDON BLEU CASSEROLE comes out perfectly golden and easy to serve.
Step 2: Combine Chicken and Ham
In a large mixing bowl, combine 3 cups of cooked chicken and 1½ cups of diced ham. If you’re using rotisserie chicken, simply shred it with your hands or a fork. This mixture will be the heart of your casserole, so stir it well until evenly combined, ensuring each bite is filled with meaty goodness.
Step 3: Mix the Creamy Sauce
In a separate bowl, whisk together ½ cup of sour cream, ¼ cup of milk, 1 tablespoon of Dijon mustard, ½ teaspoon of garlic powder, ½ teaspoon of onion powder, and some salt and pepper to taste. Keep whisking until the mixture is smooth and creamy—this will be the luscious sauce that envelops your CORDON BLEU CASSEROLE.
Step 4: Combine the Mixtures
Pour your creamy sauce over the chicken and ham blend, then stir until everything is well coated in that delicious mixture. Take a moment to savor the aroma as you mix; it’s the promise of comfort food to come! This step ensures that every morsel is infused with flavor.
Step 5: Spread the Mixture
Carefully spread the chicken and ham mixture evenly in your greased baking dish. Make sure to level it out with a spatula for even cooking. This step helps create a uniform casserole that will bubble beautifully, showcasing the comforting charm of your CORDON BLEU CASSEROLE.
Step 6: Add Cheese and Topping
Sprinkle the remaining ½ cup of shredded Swiss cheese on top of the casserole to create a gooey, cheesy layer. If you’re using bread crumbs, mix them with 2 tablespoons of melted butter in another bowl and sprinkle that over the cheese for added crunch. This will create a delightful contrast to the creamy dish beneath.
Step 7: Bake to Perfection
Place the casserole in the preheated oven and bake for 25-30 minutes. You’ll know it’s done when the top is golden-brown and the cheese is bubbly, creating an inviting look that enhances the anticipation of your meal. Enjoy the delightful aroma wafting through your kitchen as it bakes!
Step 8: Cool and Serve
Once the timer goes off, remove the CORDON BLEU CASSEROLE from the oven and let it cool for a few minutes before serving. This resting period makes it easier to slice while allowing the flavors to meld together perfectly. Get ready to dish up this comforting meal for your family!

Expert Tips for Cordon Bleu Casserole
• Choose Quality Ingredients: Use high-quality ham and Swiss cheese to elevate the flavor significantly; it’s the key to making your CORDON BLEU CASSEROLE truly memorable.
• Watch the Baking Time: Avoid overbaking by checking the casserole around the 25-minute mark; cover it with foil if the top browns too quickly.
• Let It Rest: Allow the casserole to cool for about 5-10 minutes after baking; this will help it set and make slicing easier.
• Experiment with Flavors: Don’t hesitate to swap out cheese or add vegetables like spinach or broccoli to create a unique spin on your CORDON BLEU CASSEROLE.
• Make-Ahead Magic: Prepare the casserole up to 24 hours in advance, then refrigerate it; just pop it in the oven when you’re ready for a stress-free dinner!
What to Serve with Chicken Cordon Bleu Casserole?
Enhance your comforting meal with delightful sides that create a memorable dining experience for the whole family.
-
Garlic Bread: Perfectly toasted, it adds a crunchy contrast to the creamy casserole while being great for scooping up cheesy goodness.
-
Green Salad: A fresh mix of greens with a light vinaigrette balances the richness of the casserole, offering a refreshing palette cleanser.
-
Steamed Broccoli: Vibrant and nutritious, it brings a splash of color and serves as a crunchy counterpart to the tender casserole.
-
Roasted Asparagus: Drizzled with olive oil and sea salt, the earthy flavors elevate the overall dish while providing a delightful texture contrast.
-
Mashed Potatoes: Creamy and buttery, they absorb the savory flavors from the casserole, making every bite irresistibly comforting.
-
Mixed Veggie Medley: Sautéed carrots, peas, and bell peppers provide a dash of sweetness while introducing an inviting rainbow of color to your plate.
-
Crispy Onion Rings: Their crunch pairs surprisingly well with the creamy casserole, adding fun and texture to the meal.
-
Peach Iced Tea: A light, fruity drink that refreshes the palate and complements the savory elements of the casserole.
-
Chocolate Chip Cookies: A sweet treat for dessert that leaves everyone satisfied and adds a delightful ending to a family-friendly dinner.
How to Store and Freeze Cordon Bleu Casserole
Fridge: Store leftover CORDON BLEU CASSEROLE in an airtight container for up to 3 days. This keeps it fresh and ready to heat up when you need a comforting meal.
Freezer: For longer storage, freeze the casserole before baking. Wrap it tightly in plastic wrap or foil for up to 2 months. Thaw in the fridge overnight before baking.
Reheating: To reheat, place in a 350°F (175°C) oven for 20-25 minutes or until heated through. You may also microwave individual portions for 2-3 minutes, ensuring it’s warm all the way through.
Assembling Ahead: You can prepare the casserole and store it unbaked in the fridge for up to 24 hours. This allows you to have a delicious home-cooked meal with minimal effort on busy nights!
Make Ahead Options
These CORDON BLEU CASSEROLE preparations are perfect for meal prep enthusiasts! You can assemble the casserole up to 24 hours in advance by preparing all the ingredients and combining them in the baking dish, then covering it tightly with plastic wrap or aluminum foil to refrigerate. Additionally, if you have leftovers, they can be stored in the refrigerator for up to 3 days. When you’re ready to bake, simply remove the cover and pop it into a preheated oven for 25-30 minutes, allowing a few extra minutes if baking straight from the fridge to ensure it’s heated through. Just like that, you’ll enjoy a comforting homemade meal with minimal effort, saving precious time for your busy weeknights!
CORDON BLEU CASSEROLE Variations & Substitutions
Feel free to let your culinary creativity shine! This comforting dish invites you to explore diverse flavors and textures that suit your taste buds perfectly.
- Veggie-Packed: Add sautéed spinach, mushrooms, or bell peppers to amp up nutrition and flavor, creating a more balanced and vibrant casserole.
- Cheese Variety: Replace Swiss cheese with Gruyere for a nuttier flavor, or try mozzarella for a milder take; each cheese brings its own charm.
- Dairy-Free Delight: Swap sour cream with cashew cream or coconut yogurt, ensuring a creamy consistency without any dairy.
- Mustard Mix: Experiment with different mustards like whole grain or spicy brown for an extra kick; it completely transforms the flavor profile!
- Herb Infusion: Incorporate fresh herbs like thyme or parsley for a fragrant freshness that will elevate the casserole to new heights.
- Seasoned Breadcrumbs: Use Italian-seasoned breadcrumbs for a flavorful topping that adds a delicious twist; mix in some Parmesan cheese for extra savoriness.
- Spicy Kick: Add a pinch of cayenne or some crushed red pepper flakes to the creamy sauce for a bit of heat that balances the richness perfectly.
- Make It a Meal: Serve it alongside a simple salad or garlic bread, similar to how you might elevate a Cornbread Breakfast Casserole or a flavorful Sweet Potato Casserole to complete your dinner spread.
Dare to experiment and make this dish your own, because every twist makes it uniquely delicious!

Cordon Bleu Casserole Recipe FAQs
What type of chicken is best to use for Cordon Bleu Casserole?
You can use any cooked chicken, but I highly recommend rotisserie chicken for its ease and flavor. Just shred about 3 cups to make this dish even more convenient!
How should I store leftover Cordon Bleu Casserole?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. This keeps your casserole fresh and ready for those effortless reheating moments throughout the week.
Can I freeze Cordon Bleu Casserole?
Absolutely! For best results, freeze the casserole before baking. Wrap it tightly in plastic wrap or foil and store it for up to 2 months. When you’re ready to enjoy, simply thaw it overnight in the fridge, then bake according to the recipe instructions.
What can I add to my Cordon Bleu Casserole for extra flavor?
The more the merrier! You can incorporate sautéed vegetables like mushrooms, spinach, or broccoli for added nutrition. Swapping Swiss cheese for Gruyere or adding different types of mustard can also give it a unique twist—don’t be afraid to experiment!
Is this dish suitable for those with dietary restrictions?
If you’re catering to specific dietary needs, you can easily adapt the recipe. Substitute sour cream with Greek yogurt for a lighter option, and if you have a dairy allergy, opt for dairy-free cheese alternatives. Just keep in mind the ingredients and any cross-contamination, especially if cooking for pets or those with allergies.

Comforting Cordon Bleu Casserole for Easy Family Dinners
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking dish.
- In a large mixing bowl, combine 3 cups of cooked chicken and 1½ cups of diced ham, stirring until evenly mixed.
- In a separate bowl, whisk together ½ cup of sour cream, ¼ cup of milk, 1 tablespoon of Dijon mustard, ½ teaspoon of garlic powder, ½ teaspoon of onion powder, and season with salt and pepper.
- Pour the creamy sauce over the chicken and ham mixture and stir until everything is well coated.
- Spread the chicken and ham mixture evenly in your greased baking dish.
- Sprinkle the remaining ½ cup of shredded Swiss cheese on top. Combine ½ cup of bread crumbs with 2 tablespoons of melted butter and sprinkle over the cheese if using.
- Bake for 25-30 minutes until the top is golden-brown and the cheese is bubbly.
- Let it cool for a few minutes before serving.

Leave a Reply