This Chicken Cordon Bleu Casserole Surprise is a delightful twist on the classic dish you know and love. With layers of savory chicken, ham, and cheese, topped with a golden breadcrumb crust, it’s comfort food at its best. Perfect for a cozy family dinner or a special gathering with friends.
Boneless chicken breasts are the heart of this dish, providing a lean protein base. We cube them so they layer nicely with the other ingredients. Ham adds a salty, savory contrast that complements the mildness of the chicken. Swiss cheese melts beautifully, pulling the flavors together with its nutty taste. The heavy cream and butter create a rich, velvety sauce, while the flour thickens it to perfection. Dijon mustard adds a subtle tang, enhancing the overall flavor profile. Bread crumbs mixed with olive oil give the casserole its satisfying, crispy top. Finally, salt and pepper tie everything together, ensuring each layer is seasoned just right.
This casserole pairs beautifully with a fresh green salad or steamed vegetables for a balanced meal. For a more indulgent option, serve it alongside garlic bread to soak up the creamy sauce.
First things first, let's get your oven preheated to 350°F (175°C). While that's warming up, grab a saucepan and set it over medium heat. Toss in the butter and let it melt completely. Once it's melted, sprinkle in the flour and whisk it around until you have a smooth roux. This is your sauce base.
Next, slowly pour in the chicken broth and keep whisking to avoid any lumps. Follow up with the heavy cream, stirring constantly. You're looking for a thick, creamy consistency. Once that's achieved, mix in the Dijon mustard, along with a pinch of salt and pepper to taste.
Now, let's assemble the casserole. In a large baking dish, start by layering your cubed chicken evenly at the bottom. Sprinkle the diced ham over the chicken, and then spread the shredded Swiss cheese on top. Pour the creamy sauce evenly over everything, ensuring it seeps through all the layers.
For the finishing touch, combine the bread crumbs with olive oil in a small bowl. This will help them brown nicely. Sprinkle this mixture over the top of your casserole. Pop it in the oven for 25-30 minutes until the top is golden brown and bubbly. Let it cool for a few minutes before serving.