Preheat oven to 350°F (177°C). Spray a 9X13 inch baking dish with nonstick cooking spray and set aside.
Cook egg noodles (12 ounces) according to the package instructions just until pasta is al dente. Drain.
In a medium mixing bowl, mix the cream of chicken soup (straight from the 2 can-undiluted) and sour cream (16 ounces). Add chicken (3 cups), ham (1 cup), swiss cheese (1 cup), and cooked and drained noodles, then fold until everything is evenly coated. Pour into prepared baking dish.
In a small bowl, mix the panko (1 ½ cups) and melted butter (1/3 cup). Sprinkle evenly on the top of the casserole.
Bake in preheated oven for 25-30 minutes or until the casserole is heated through.
If the topping hasn't been browned, place it under the broiler, watching carefully, and broil just until the topping is golden brown.
Notes
Noodles: Egg noodles have plenty of valuable real estate to pick up all that smoky creamy sauce. Plus, they are full of protein and essential amino acids.
Soup: Also, you’ll want to use undiluted cream of chicken soup for this recipe. It will soak up all the natural juices released from the chicken and cheese which will give your chicken cordon bleu casserole recipe a ton of flavor! Plus, the sour cream will thin it out just a little and give it that dreamy indulgent texture.
Cheese: This recipe also calls for one cup of shredded Swiss cheese. Use freshly shredded cheese. It will make this dish much creamier. The stuff that comes pre-shredded in the bag often contains potato starch and powdered cellulose to prevent it from caking together.