Preheat the Oven
Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
Prepare the Dough
Roll out the crescent roll dough or puff pastry on a lightly floured surface, pressing any seams together to form a single sheet.
Layer the Fillings
If using, spread a thin layer of Dijon mustard over the dough. Evenly layer the ham slices over the entire sheet, then sprinkle the shredded cheese on top.
Roll and Slice
Starting from the shorter edge, roll the dough tightly into a log. Using a sharp knife, slice the log into 1-inch thick pinwheels.
Bake the Pinwheels
Place the pinwheels on the prepared baking sheet, spacing them slightly apart. Brush the tops with melted butter and sprinkle with Italian seasoning and garlic powder. Bake for 12-15 minutes or until golden brown and the cheese is bubbly.
Serve and Enjoy
Remove from the oven and let them cool slightly before serving. Enjoy warm with your favorite dipping sauce!