Chicken Cordon Bleu Casserole is an easy chicken recipe for a busy dinner meal. This easy casserole combines all your favorite flavors of chicken, ham and swiss cheese but makes it fast to prepare. This uses a rotisserie chicken but you can also use leftover chicken as well!
We all love an easy chicken casserole recipe, but you won’t believe the secret addition that makes this one so amazing….
If you would rather not use a rotisserie chicken, feel free to use any other form of cooked chicken, but be sure it is well seasoned when you cook it.
Chicken Cordon Bleu Casserole
Preheat oven to 350 degrees and spray a 9×13 casserole dish with nonstick spray. Layer the chicken in the bottom of the dish followed by the ham and finally the swiss cheese.
In a medium saucepan, melt the butter over medium heat. Whisk in the flour and cook for 1 minute. Slowly add the milk, whisking to keep clumps from forming. Turn the heat to high and cook until the sauce thickens and boils completely, whisking often. Remove from the heat and add the remaining sauce ingredients. Pour the finished sauce over the base layer already in the dish Chicken Cordon Bleu Casserole.
In a small bowl, mix together the topping ingredients until the butter is evenly distributed over the crumbs. Sprinkle over the top of the dish and bake for 45 minutes. Allow cooling for 10 minutes before serving so the sauce with thickening just a bit.