Creamy Chicken Cordon Bleu Casserole is the ultimate comfort food embrace you’ve been craving! Imagine tender, juicy chicken, salty ham, and gooey, melted Swiss cheese all swimming in a luxurious, velvety sauce, baked to golden perfection. This isn’t just a meal; it’s a warm hug on a plate, a dish that instantly transports you to cozy evenings and happy gatherings. What makes this particular Creamy Chicken Cordon Bleu Casserole so utterly irresistible is its ability to capture all the beloved flavors of the classic dish – the savory chicken, the smoky ham, the sharp Swiss – and transform them into a wonderfully accessible and family-friendly casserole. It’s the perfect solution for busy weeknights when you want something hearty and satisfying without the fuss, yet still feels special enough to impress. Get ready to fall in love with every single bite.
Ingredients:
- 3 tablespoons unsalted butter
- 2 cloves garlic, grated or minced
- 3 tablespoons flour
- ½ cup chicken broth
- 1 ½ cups milk (skim or full cream)
- 1 tablespoon Dijon mustard
- 1 teaspoon chicken or vegetable stock/Bouillon powder
- ¼ cup fresh grated parmesan cheese
- Salt and pepper to taste
- 2 tablespoons fresh parsley (optional, for garnish)
- 4 cups cooked or rotisserie chicken, shredded or diced
- 2 cups fresh broccoli florets, uncooked
- 2 cups ham, diced
- 2 cups Swiss cheese, shredded
- ¼ cup fresh grated Parmesan cheese
Preparing the Creamy Sauce
Step 1: Melting the Butter and Sautéing Garlic
First, we’ll get our creamy sauce base started. Grab a medium saucepan and place it over medium heat. Add the 3 tablespoons of unsalted butter. Let it melt completely until it’s nice and bubbly. Once the butter has melted, add the 2 cloves of garlic, grated or minced. Sauté the garlic for about 1 minute, stirring constantly. Be careful not to burn the garlic, as this can make it bitter. We just want to soften it and release its wonderful aroma. This fragrant garlic will infuse our sauce with a delicious depth of flavor.
Step 2: Creating the Roux and Whisking in Liquids
Now, we’re going to create a roux, which is the thickening agent for our sauce. Sprinkle the 3 tablespoons of flour over the melted butter and sautéed garlic. Whisk continuously for about 1 to 2 minutes. This process cooks out the raw flour taste and creates a smooth paste. The mixture will be thick and pasty. Next, gradually pour in the ½ cup of chicken broth, whisking vigorously to break up any lumps. Continue whisking until the broth is fully incorporated and the mixture is smooth. Then, slowly whisk in the 1 ½ cups of milk, a little at a time, ensuring each addition is fully blended before adding more. Keep whisking until the sauce is smooth and lump-free.
Step 3: Simmering and Seasoning the Sauce
Bring the sauce to a gentle simmer over medium-low heat, stirring frequently. You’ll notice the sauce will begin to thicken as it heats up. Let it simmer for about 3 to 5 minutes, continuing to stir. This simmering time is crucial for the sauce to reach the desired consistency and for the flour to fully cook, ensuring a smooth, velvety texture. Now it’s time for flavor! Stir in the 1 tablespoon of Dijon mustard. Dijon mustard adds a lovely tang and complexity that complements the richness of the sauce beautifully. Next, add the 1 teaspoon of chicken or vegetable stock/Bouillon powder. This little boost of savory flavor makes a big difference. Finally, stir in the ¼ cup of fresh grated parmesan cheese until it’s melted and fully incorporated into the sauce. Season generously with salt and pepper to taste. Remember to taste and adjust as you go – this is your chance to perfect the flavor!
Assembling the Casserole
Step 4: Combining Casserole Ingredients
Preheat your oven to 375°F (190°C). Now, it’s time to bring all our delicious components together. In a large mixing bowl, combine the 4 cups of cooked or rotisserie chicken (shredded or diced), the 2 cups of fresh broccoli florets (uncooked), and the 2 cups of diced ham. Pour about half of the creamy sauce you just made over these ingredients. Gently toss everything together until the chicken, broccoli, and ham are evenly coated with the sauce. Make sure every piece gets a good dollop of that creamy goodness!
Step 5: Layering and Baking the Casserole
Lightly grease a 9×13 inch baking dish. Pour the chicken, ham, and broccoli mixture into the prepared baking dish, spreading it out evenly. Now, we’ll add our cheesy topping! Sprinkle the 2 cups of shredded Swiss cheese evenly over the top of the casserole. Then, sprinkle the additional ¼ cup of fresh grated Parmesan cheese over the Swiss cheese. This double cheese layer will melt into a glorious, bubbly, and golden-brown crust. Cover the baking dish tightly with aluminum foil. Place the casserole in the preheated oven and bake for 20 minutes. After 20 minutes, carefully remove the foil and bake for another 15-20 minutes, or until the casserole is bubbly and the cheese on top is golden brown and melted. The broccoli should be tender-crisp. For an optional touch of freshness and color, sprinkle the 2 tablespoons of fresh parsley over the top just before serving. Let the casserole rest for a few minutes before serving.

Conclusion:
And there you have it – your delicious and comforting Creamy Chicken Cordon Bleu Casserole is ready to be devoured! This recipe is a fantastic weeknight meal that’s sure to impress your family with its rich, savory flavors and satisfying texture. The combination of tender chicken, salty ham, and creamy Swiss cheese, all baked into a harmonious casserole, makes it a true crowd-pleaser. I love serving this with a simple side salad to balance the richness, or some steamed green beans for a touch of freshness.
Don’t be afraid to get creative! You can easily customize this casserole. Consider adding a layer of sautéed mushrooms or onions for an extra depth of flavor. For a spicier kick, a pinch of cayenne pepper in the sauce can be wonderful. If you’re looking for a gluten-free option, a gluten-free pasta or even riced cauliflower can be used as a base. Regardless of how you choose to prepare it, I encourage you to give this Creamy Chicken Cordon Bleu Casserole a try. It’s a recipe that’s both forgiving and incredibly rewarding.
Frequently Asked Questions:
Can I make this casserole ahead of time?
Yes, absolutely! You can assemble the casserole up to 24 hours in advance. Cover it tightly with plastic wrap and then foil, and refrigerate. When you’re ready to bake, remove it from the refrigerator about 30 minutes before baking to allow it to come closer to room temperature, and then bake as directed, adding a few extra minutes to the cooking time if needed.
What kind of ham works best?
Deli-sliced ham works wonderfully, offering a consistent texture and flavor. You can also use leftover cooked ham, just ensure it’s diced or cubed into bite-sized pieces. The key is to have a good quality ham that contributes that classic Cordon Bleu salty essence.

Easy Creamy Chicken Cordon Bleu Casserole Recipe
A simple and delicious casserole featuring chicken, ham, and broccoli in a creamy cheese sauce, inspired by Chicken Cordon Bleu.
Ingredients
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3 tablespoons unsalted butter
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2 cloves garlic, grated or minced
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3 tablespoons flour
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½ cup chicken broth
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1 ½ cups milk (skim or full cream)
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1 tablespoon Dijon mustard
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1 teaspoon chicken or vegetable stock/Bouillon powder
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2 cups fresh grated parmesan cheese
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Salt and pepper to taste
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2 tablespoons fresh parsley (optional, for garnish)
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4 cups cooked or rotisserie chicken, shredded or diced
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2 cups fresh broccoli florets, uncooked
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2 cups beef, diced
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2 cups Swiss cheese, shredded
Instructions
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Step 1
Melt butter in a medium saucepan over medium heat. Add garlic and sauté for about 1 minute until fragrant. -
Step 2
Sprinkle flour over the butter and garlic, whisking constantly for 1-2 minutes to create a roux. Gradually whisk in chicken broth until smooth, then slowly whisk in milk until lump-free. -
Step 3
Bring sauce to a gentle simmer over medium-low heat, stirring frequently for 3-5 minutes until thickened. Stir in Dijon mustard, bouillon powder, and ¼ cup parmesan cheese. Season with salt and pepper to taste. -
Step 4
Preheat oven to 375°F (190°C). In a large bowl, combine cooked chicken, broccoli florets, and diced beef. Pour half of the creamy sauce over the mixture and toss to coat. -
Step 5
Grease a 9×13 inch baking dish. Spread the chicken mixture evenly in the dish. Sprinkle 2 cups of shredded Swiss cheese and ¼ cup parmesan cheese over the top. -
Step 6
Cover with aluminum foil and bake for 20 minutes. Remove foil and bake for another 15-20 minutes, or until bubbly and golden brown. -
Step 7
Garnish with fresh parsley if desired. Let rest for a few minutes before serving.
Important Information
Nutrition Facts (Per Serving)
It is important to consider this information as approximate and not to use it as definitive health advice.
Allergy Information
Please check ingredients for potential allergens and consult a health professional if in doubt.





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