01 - Preheat oven to 400°F and line a baking sheet with parchment paper
02 - In a mixing bowl, combine ground beef, onion, garlic, thyme, oregano, Worcestershire sauce, Dijon mustard, black pepper, salt, and parsley. Mix until fully incorporated
03 - Roll out puff pastry on lightly floured surface. Cut sheet in half lengthwise to create two long rectangles
04 - Divide beef mixture in half. Shape each portion into a long sausage shape and place along center of each pastry strip
05 - Brush one long edge of each pastry strip with beaten egg mixed with milk. Roll pastry over filling, sealing edge. Place seam side down
06 - Cut each long roll into 6 equal pieces, approximately 2 inches each. Place on prepared baking sheet
07 - Brush tops with remaining egg wash. Sprinkle with sesame or poppy seeds if using
08 - Bake for 20-25 minutes or until golden and cooked through. Let cool slightly before serving