A lot of times when people think of Chicken Cordon Bleu Casserole, they think of a version they grew up with that uses "cream of" style condensed soups with with sour cream. This one is not that. This version has a creamy Dijon Parmesan sauce that's poured of a yummy combination of chicken, ham, and Swiss. It's all brought together with a crispy, crunchy breadcrumb topping that will remind you of the crispy breading on Chicken Cordon Bleu.
Prep Time20 minutesmins
Cook Time45 minutesmins
Total Time1 hourhr5 minutesmins
Course: Dinner, Main Course, Main Dish, Main Dishes
Preheat the oven to 350°F. Spray a 9x13 oven safe baking dish with nonstick spray and set it aside.
Add the chicken and ham to the casserole dish. Sprinkle the Swiss cheese over the top of the chicken and ham mixture.
In a skillet add the butter and let it melt.
Add in the flour and whisk until it creates a smooth bubbly roux.
Slowly pour in the milk, whisking while adding.
Once the milk is fully added and there are no clumps, add in the Dijon mustard, garlic powder, salt, black pepper, parmesan, and Worcestershire sauce.
Once it's smooth, pour the sauce over the Swiss cheese.
Combine the melted butter, panko bread crumbs, and parmesan cheese in a small bowl.
Sprinkle the breadcrumb mix over the top of the sauce.
Bake uncovered in the oven for 45 minutes. Remove it from the oven and let it cool for 10-15 minutes. The sauce will thicken as it cools.
Video
Notes
I highly recommend freshly grated parmesan cheese for the sauce. The pre-shredded cheese has an anti-caking agent on it that prevents it from melting as well.
Don't let your roux cook too long. You aren't looking to darken the roux, just let it cook quickly.
Make sure your shredded chicken doesn't have a lot of liquid. It can cause your sauce to be watery.