Preheat oven to 400°F. Line a baking sheet with parchment paper.
In a large bowl, mix ground pork, egg, breadcrumbs, Worcestershire sauce, garlic powder, onion powder, salt, paprika, parsley, Dijon mustard, and Swiss cheese until just combined.
Place puff pastry on a lightly floured surface. Cut the puff pastry in half starting at the short end to create two long rectangles.
Divide the pork mixture in half and shape the pork mixture into a log along one edge of each pastry dough.
Roll pastry tightly around the filling, pinch the edges of the seam, and place the log seam side down on the baking sheet. Repeat with the other half.
Refrigerate for 15 minutes to firm up.
Slice into 1-inch pieces and arrange seam side down on the baking sheet.
Brush with egg wash and sprinkle with sesame seeds.
Bake 20–25 minutes, until puffed and deeply golden.
Cool slightly and serve warm.