Chicken Cordon Bleu Casserole
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Chicken Cordon Bleu Casserole ~ Comforting Casserole with Layers of Chicken, Ham and Cheese with a Creamy, Cheesy White Sauce! Perfect Dinner Casserole!
I grew up in the hey day of casseroles. Tuna Casserole. Chicken Noodle Casserole. Chinese Chicken Casserole. Potato Casserole. Broccoli Casserole. You name it, there was a casserole made out of it.
But my mom never made a casserole like this! This is casserole 2.0!
If you’ve ever had Chicken Cordon Bleu, you know how amazing it is. I first had it when I went to college. It was the pre-packaged re-heated variety served in the dorm cafeteria, and it was glorious. How did they get that cheese and ham in there? I didn’t really care. It was just so good.
Some time later in my life, I tried making Chicken Cordon Bleu from scratch. I ended up with chicken poked all over with toothpicks to keep it from unrolling, breading falling off, and all my cheese oozing out. It made me sad.
What made me even more sad was how much the pre-packaged frozen variety cost at the store. So I never bought it. I was Chicken Cordon Bleu-deprived for years and years.
Imagine my rapture when I discovered this Chicken Cordon Bleu Casserole! No stuffing and rolling chicken. No toothpicks. No breading falling off and cheese melting out. Just layers of chicken, ham and cheese with a creamy, cheesy white sauce. It is magical.
This casserole is really easy to make. All you do is put some cooked, shredded chicken in the bottom of a 9×13 pan. Then just scatter some chopped ham over the top and layer with slices of Swiss cheese. (I never have Swiss cheese, so I just use shredded mozzarella). Then you pour the lovely white sauce over it all, and crown it with buttered breadcrumbs and spices.
This recipe calls for panko. If you have never heard of this, it is feathery Japanese bread crumbs. (It literally means “little bread.”) You can buy it in any store. Alternately, you can make your own breadcrumbs using the heels of bread. Just break them up, toss them into a food processor, and pulse a few times until they reach your desired size.
This recipe also calls for Dijon mustard. I have never bought Dijon mustard in my life, so I just use normal yellow mustard. But if YOU buy Dijon mustard, then by all means, use it!
When everything is assembled, you will bake it uncovered for about 45 minutes until the topping is golden brown and it is bubbly around the edges. Once removing it from the oven, you’ll want to let it sit and cool for 10-15 minutes to give it a chance to firm up just a bit.
This casserole is a hit with guests every time. I know your family will love it!
Did you make this? If you snap a photo, please be sure tag me on Instagram at @julieseatsandtreats or #julieseatsandtreats so I can see your yummy treat!

Chicken Cordon Bleu Casserole
Ingredients
For the Casserole
- 5 cups cooked and shredded chicken
- ½ pound thinly sliced deli ham chopped
- ¼ pound thinly sliced Swiss Cheese or 2 cups shredded mozzarella or provolone cheese
For the White Sauce
- 4 Tablespoons butter
- ¼ cup flour
- 3 cups milk
- 1 Tablespoons lemon juice
- 1 Tablespoons Dijon mustard
- ½ teaspoon salt
- ½ teaspoon smoked paprika
- ¼ teaspoon pepper
For the Topping
- 2 cups Panko breadcrumbs
- 5 Tablespoons butter melted
Instructions
For the Casserole
- Preheat oven to 350 degrees Fahrenheit. Butter or lightly spray a 9x13 baking dish.
- Put shredded chicken evenly in the bottom of the baking dish.
- Sprinkle the chopped ham over the top of the chicken.
- Lay the slices of cheese over the ham, or sprinkle the shredded cheese over the ham.
For the White Sauce
- Melt the butter in a medium-sized saucepan over medium heat.
- Once the butter is melted, add the flour all at once and stir to make a roux. (It will look like thick paste).
- Once it is smooth and bubbly, slowly pour in the milk while stirring quickly or using a whisk to make a smooth sauce.
- Continue to cook over medium heat, stirring constantly, until the sauce thickens.
- Add the lemon juice, mustard, salt, paprika, and pepper.
- Bring the sauce barely to a boil and then remove from the heat.
- Pour over the chicken, ham, and cheese.
For the Topping
- Melt the butter in the microwave in a medium-sized bowl. Be sure to loosely cover the bowl to keep the butter from spattering.
- Remove the bowl from the microwave and mix in the Panko.
- Sprinkle over the top of the casserole.
- Bake uncovered for 30-35 minutes. Let cool for 10-15 minutes before serving.
Nutrition Information
Try these great sides!
Dorothy says
I love this recipe! It doesn’t have to be bland like someone says. Every time I make it I change it up to however I feel for the day! Sometimes I add rosemary, sometimes garlic, whatever I feel like. You can sample the white sauce before you pour it over the other ingredients so it’s just how you want it. Thanks again Julie. I love your recipes! I especially try the smoked ones!
Julie Evink says
So glad to hear this Dorothy! Great tips!
Carolyn says
Quite bland. I doubled the Dijon and used lite swiss (that’s all I could find that day), otherwise I followed the recipe. Too much panko topping, it just makes a mess. I won’t bother with it again.
Julie Evink says
I’m sorry you didn’t enjoy it!
Lawrence Domingos says
I agree with you
Julie says
Thanks!
Claudia Lamascolo says
I was afraid to attempt this it looked so gourmet but it came out great and easier than I ever imagined thanks!
Julie says
You’re welcome! It comes together easier than you’d think!
Ashley F says
One of my favorite ways to eat chicken! The flavors are so good, we loved it!
Julie says
Same here! Glad you enjoyed it!
Gayle Bridges says
Can’t wait to try it.
Julie Evink says
Enjoy!
Judy Gonzalez says
I made this tonight and we really enjoyed it! I didn’t have lemon juice so I used 1 TB white vinegar in the sauce instead (I googled it!)
Julie Evink says
I’m so glad you could make it work for you and that you enjoyed it!