01 -
Evenly spread shredded cooked chicken across the bottom of the baking dish.
02 -
Place Black Forest ham slices gently over the chicken ensuring full coverage.
03 -
Arrange overlapping Swiss cheese slices on top of the ham layer.
04 -
Melt butter in a saucepan over medium heat, whisk in flour continuously until smooth and lightly golden. Gradually add whole milk in small increments while stirring constantly to form a thick, lump-free sauce. Whisk in Dijon mustard until fully incorporated.
05 -
Evenly pour the prepared Dijon cream sauce over the layered chicken, ham, and cheese.
06 -
Mix Panko breadcrumbs with melted butter until evenly coated, then scatter uniformly over the sauced layers.
07 -
Bake in a preheated oven at 180°C for 25-30 minutes or until the topping is golden and bubbly. Allow to rest for 10 minutes before serving to set.