Prepare by laying one sheet of thawed puff pastry on a clean surface. Roll into a 10x12-inch rectangle.

Spread 1.5 tablespoons of Dijon mustard over the pastry, leaving a ½-inch border. Layer 6 slices of deli ham and 1 cup of grated cheese on top.

Roll the pastry tightly from one long edge to make a log, trim the ends, and wrap in plastic wrap. Refrigerate for 20 minutes.

Preheat the oven to 375°F and line two baking sheets with parchment paper.

Slice the chilled log into ½-inch sections and place cut-side up on the baking sheets.

Bake for about 18 minutes until puffed and golden brown.

After baking, let cool slightly and garnish with freshly chopped parsley. Serve warm.