Ingredients
Method
Preparation
- Preheat the oven to 350°F and spray a 9x13-inch casserole dish with nonstick cooking spray.
- Evenly spread 5 cups shredded chicken into the baking dish.
- Evenly layer 9 ounces sliced deli-style black forest ham over the chicken.
- Place 8 ounces sliced Swiss cheese evenly over the ham.
Making the sauce
- Melt 6 Tablespoons unsalted butter in a saucepan over medium heat.
- Whisk in Dijon mustard, lemon juice (if using), garlic powder, salt, nutmeg (if using), and cayenne pepper (if using).
- Sprinkle in 6 Tablespoons all-purpose flour and whisk until it forms a paste.
- Slowly add 3 cups whole milk, a quarter cup at a time, whisking until smooth.
- Allow the sauce to simmer for 4 minutes or until thickened, whisking occasionally.
Assembly and baking
- Pour the sauce over the cheese layer, ensuring even distribution.
- Combine 1 ½ cups Panko breadcrumbs and 4 Tablespoons softened butter and spread evenly over the casserole.
- Bake uncovered for 30-40 minutes or until bubbling and golden brown.
- Let the casserole sit for 5 minutes before serving.
Notes
Serve hot with sides like salad or roasted vegetables. Store in the fridge for up to 4 days. Reheat covered at 350°F.
