Preheat oven to 375 and unroll dough on a baking sheet. Place ham in the center of the dough, overlapping the pieces and placing within 1" of the ends of the dough. Top with onion. Add cheese, overlapping slices.

Fold the long sides of the dough to the center and pinch the seams together. Fold the ends under. Cut slits in the top of the dough.

Bake for 20-25 minutes or until golden brown. Cut into slices and serve with honey mustard dipping sauce.