This Chicken Cordon Bleu Casserole transforms the classic, elegant dish into an easy weeknight meal the whole family will adore. Forget the hassle of stuffing and rolling individual chicken breasts. We’re layering all those incredible flavors—tender chicken, savory ham, and nutty Swiss cheese—into a simple bake. It’s all brought together with a luscious, creamy Dijon sauce and topped with crispy, golden breadcrumbs. You get all the sophisticated taste with a fraction of the work.
If you’re looking for a definitive comfort food dish that feels a little fancy, this is it. It’s the perfect recipe to use up leftover chicken or ham and comes together in just about 45 minutes. Let’s dive in and make this incredible casserole.

Why This Chicken Cordon Bleu Casserole is a Weeknight Winner
There are so many reasons to love this recipe, but here’s why it will become a staple in your meal rotation.
- Effortless Prep: This recipe relies on simple layering instead of complex stuffing and rolling, saving you significant time and effort.
- Classic Flavors: It captures the beloved taste of traditional Chicken Cordon Bleu—the perfect trio of chicken, ham, and Swiss cheese.
- Ultra-Creamy Sauce: The rich and tangy Dijon cream sauce is what sets this casserole apart. It’s perfectly balanced and coats every single bite.
- Family-Friendly: It’s a guaranteed hit with both kids and adults, making it a reliable choice for any family dinner.
The Key Ingredients You’ll Need
This recipe uses simple, easy-to-find ingredients to create its signature flavor. Here’s what you’ll need to gather.
For the Casserole
- Chicken: Cooked and shredded or cubed. A rotisserie chicken works beautifully here for extra convenience.
- Ham: Diced cooked ham adds that essential savory, smoky flavor. This is a great way to use up leftovers!
- Swiss Cheese: Freshly shredded Swiss cheese melts beautifully and provides that classic nutty taste.
- Egg Noodles: Cooked egg noodles or another short pasta like penne create the hearty base of the casserole.
For the Creamy Dijon Sauce & Topping
- Butter: The base for our rich cream sauce.
- Flour: Used to thicken the sauce into a perfect, creamy consistency.
- Milk & Heavy Cream: A combination of both creates a sauce that’s creamy but not overly heavy.
- Dijon Mustard: This is the star ingredient, providing a tangy kick that cuts through the richness.
- Spices: A simple mix of garlic powder, onion powder, salt, and black pepper is all you need.
- Panko Breadcrumbs: For that irresistibly crispy, crunchy topping.

Step-by-Step Instructions
Making this Chicken Cordon Bleu Casserole is as easy as layering and baking. Follow these simple steps for a perfect result every time.
1. Prepare the Base
Start by preheating your oven to 375°F (190°C) and lightly greasing a 9×13 inch baking dish. In a large bowl, combine your cooked pasta, shredded chicken, diced ham, and about half of the shredded Swiss cheese. Gently toss everything together until it’s evenly mixed.
2. Create the Creamy Dijon Sauce
In a medium saucepan, melt the butter over medium heat. Whisk in the flour and cook for about one minute until it forms a paste—this is your roux. Slowly pour in the milk and heavy cream while whisking continuously to prevent lumps. Continue to cook, whisking often, until the sauce thickens enough to coat the back of a spoon, about 5-7 minutes. Remove from the heat and stir in the Dijon mustard, garlic powder, onion powder, salt, and pepper.
3. Assemble and Bake
Pour the creamy Dijon sauce over the chicken mixture in the large bowl and stir until everything is well-coated. Spread this mixture evenly into your prepared baking dish. In a small bowl, melt the remaining butter and toss it with the panko breadcrumbs. Sprinkle the remaining Swiss cheese over the casserole, followed by the buttered panko breadcrumbs. Bake for 25-30 minutes, or until the casserole is hot and bubbly and the topping is golden brown and crispy.
Pro Tips for the Best Casserole
Want to guarantee a perfect Chicken Cordon Bleu Casserole every time? Keep these simple tips in mind.
- Shred Your Own Cheese: Pre-shredded cheese is often coated in anti-caking agents that can make your sauce gritty. For the smoothest, meltiest result, buy a block of Swiss and shred it yourself.
- Don’t Overcook the Pasta: Cook your pasta until it’s just al dente. It will continue to cook in the oven, and this prevents it from becoming mushy.
- Let it Rest: After pulling the casserole from the oven, let it rest for 5-10 minutes. This allows the sauce to set up, making it easier to serve. Looking for other amazing casserole ideas? This Cheddar Bay Biscuit Seafood Pot Pie is another fan favorite.
What to Serve With Your Casserole
This casserole is a hearty meal on its own, but it pairs wonderfully with a simple side dish. A crisp green salad with a light vinaigrette is a perfect fresh contrast. For a vegetable, simple sautéed vegetables or steamed green beans work beautifully. If you want something a bit more substantial, these easy Butter Swim Biscuits are perfect for sopping up any extra creamy sauce.
Storage and Reheating Instructions
Leftovers are one of the best parts of making a casserole! Store any remaining Chicken Cordon Bleu Casserole in an airtight container in the refrigerator for up to 4 days. To reheat, you can microwave individual portions or place the casserole back in an oven-safe dish and bake at 350°F (175°C) until warmed through. If it seems a little dry, you can add a splash of milk before reheating.
Frequently Asked Questions
Yes! You can assemble the entire casserole without the panko topping up to 24 hours in advance. Cover and refrigerate. When you’re ready to cook, add the buttered panko topping and bake, adding about 5-10 minutes to the total baking time.
The key is the creamy Dijon sauce. Make sure you use the full amount of sauce and coat all the ingredients evenly before baking. Using a combination of milk and heavy cream, as the recipe calls for, also ensures a rich, moist result that won’t dry out.
To freeze, assemble the casserole without the topping in a freezer-safe dish. Cover tightly with plastic wrap and then foil. It can be frozen for up to 3 months. Thaw overnight in the refrigerator before adding the topping and baking as directed.
If you’re not a fan of Swiss, Gruyère is an excellent substitute with a similar nutty flavor. You could also use a mix of mozzarella and provolone for a milder, extra-cheesy result.
You can use almost any kind of cooked ham. Deli ham (cut thick), leftover baked ham, or pre-diced ham all work perfectly in this recipe. It’s a great way to use up leftovers!
More Delicious Recipes To Try
If you loved the cozy, comforting flavors of this dish, you’ll surely enjoy our Creamy Herb Chicken. It’s another simple yet elegant chicken dinner perfect for any night of the week.
I hope you love this easy take on a classic! If you make this Chicken Cordon Bleu Casserole, please leave a comment below and let me know how it turned out. Don’t forget to save this recipe to your favorite board on Pinterest!

Chicken Cordon Bleu Casserole Recipe

Chicken Cordon Bleu Casserole (Easy & Creamy Recipe!)
Ingredients
Equipment
Instructions
- Preheat oven to 375°F (190°C). Grease a 9x13 inch baking dish. In a large bowl, combine the cooked egg noodles, chicken, ham, and 1.5 cups of the shredded Swiss cheese.
- In a medium saucepan over medium heat, melt 4 tbsp of butter. Whisk in the flour and cook for 1 minute. Gradually whisk in the milk and heavy cream until smooth. Cook, whisking frequently, until the sauce thickens, about 5-7 minutes.
- Remove the sauce from the heat. Stir in the Dijon mustard, garlic powder, onion powder, salt, and pepper.
- Pour the sauce over the noodle mixture in the bowl and stir to combine. Spread evenly into the prepared baking dish.
- In a small bowl, melt the remaining 2 tbsp of butter and toss with the panko breadcrumbs.
- Sprinkle the remaining 1 cup of Swiss cheese over the casserole, then top with the buttered panko breadcrumbs.
- Bake for 25-30 minutes, or until the casserole is bubbly and the topping is golden brown. Let it rest for 5-10 minutes before serving.
Notes
Ingredient Tip: For the best flavor and melt, use a block of Swiss cheese and shred it yourself.