Bake in the preheated oven for 20-25 minutes, or until the chicken is cooked through and the cheese is melted and bubbly.
Serve hot and enjoy the melty, gooey, and crispy goodness!
For a spicier kick, add a pinch of cayenne pepper to the seasoning mix for the chicken. You can also experiment with different cheeses, such as pepper jack or gouda, for a unique flavor profile. If you prefer a smokier taste, try using smoked bacon or adding a dash of smoked paprika to the mustard sauce. For a more herbaceous twist, sprinkle some fresh chopped parsley or chives over the finished dish before serving.