Creating this Chicken Cordon Bleu Casserole involves a few easy steps. Just follow along to ensure your dish turns out perfectly!

1. Preheat the Oven: Set your oven to 350°F (175°C) to get it ready for baking.

2. Prepare a Baking Dish: Grease a 9×13-inch casserole dish with olive oil.

3. Combine Chicken and Ham: In a large mixing bowl, combine the shredded chicken and diced ham. Mix well to ensure an even distribution.

4. Make the Sauce: In another bowl, whisk together the cream of chicken soup, milk, Dijon mustard, garlic powder, salt, and pepper until smooth.

5. Layer the Casserole: Spread half of the chicken and ham mixture in the prepared dish. Make sure it covers the bottom evenly.

6. Add Cheese: Sprinkle half of the shredded Swiss cheese over the chicken and ham layer.

7. Repeat Layers: Add the remaining chicken and ham mixture on top, followed by the remaining Swiss cheese.

8. Prepare Breadcrumb Topping: In a separate bowl, mix breadcrumbs with olive oil and dried parsley. Sprinkle this mixture evenly over the top layer of cheese.

9. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes or until the top is golden brown and the cheese is bubbling.

10. Cool Before Serving: Once done, remove the casserole from the oven and let it cool for a few minutes.

Following these steps will guide you in creating a wonderfully comforting Chicken Cordon Bleu Casserole that guarantees satisfaction.