01 -
Preheat to 375°F and cover a baking sheet with parchment paper.
02 -
Lay the crescent dough flat and press all the seams together to form a smooth sheet.
03 -
If you like, spread mustard across the dough. Lay out the ham slices evenly, then layer cheese on top.
04 -
Roll the dough tightly into a log, starting along the longer edge. Slice it into 1-inch pieces.
05 -
Arrange the cut pieces on the parchment-lined tray. Brush with the melted butter and sprinkle poppy seeds on top, if you'd like.
06 -
Bake for 12-15 minutes, or until they're golden and the cheese is bubbly.