A delightful twist on a classic dish.
1 sheet of puff pastry (thawed if frozen)
6 slices of ham (thinly sliced)
1 cup of shredded cheese (cheddar, Swiss, or your choice)
1 tablespoon Dijon mustard (optional)
1 egg (for egg wash)
Salt and pepper (to taste)
Fresh herbs (such as chives or parsley, finely chopped; optional)