Step 1

Preheat oven to 350º. Spray a 9 x 13 inch casserole dish with cooking spray.

Step 2

Add cooked chicken and cooked ham to the bottom of the casserole dish.

Step 3

In a bowl combine the two cheeses.

Step 4

In a saucepan, melt butter and add flour, cooking for 1 minute. Gradually whisk in milk and chicken broth, whisking until it starts to thicken. Add mustard, cayenne pepper, and white wine and season with salt to taste.

Step 5

Remove from heat and add ½ of the cheese mixture and stir until melted. Pour over the chicken and ham. Top with the remaining cheese.

Step 6

In a medium bowl combine panko and 2 tablespoons of melted butter and stir with a fork. Sprinkle over the casserole.

Step 7

Bake uncovered for 35 minutes until it is bubbly and golden brown. Let it cool for about 10 minutes before serving.