Swiss chicken bake layers juicy chicken breasts with Swiss cheese and a creamy sauce under golden breadcrumbs. This high protein, family-friendly chicken casserole is elegant yet incredibly easy to prepare.
Preheat your oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish.
Layer the chicken breasts evenly along the bottom of the prepared dish, spacing them to avoid overcrowding.
Lay a slice of Swiss cheese atop each chicken breast to cover completely.
In a mixing bowl, whisk together cream of chicken soup, milk, garlic powder, black pepper, and sea salt until smooth. Pour this creamy mixture evenly over the chicken and cheese.
In a separate bowl, combine bread crumbs with melted butter. Sprinkle the bread crumb mixture evenly over the casserole, ensuring each piece of chicken is fully covered.
Bake uncovered for 45-55 minutes until the chicken reaches 165°F internally, the sauce is bubbling, and the bread crumbs are golden brown. Allow to rest for 5 minutes before serving for optimal moisture.