01 -
Preheat the oven to 400°F (200°C). Line a large baking sheet with parchment paper.
02 -
Cook the ground beef and onion in a skillet over medium-high heat for 6-8 minutes, breaking up the meat, until the beef is fully browned. Drain excess fat.
03 -
Stir in the garlic, ketchup, mustard, Worcestershire sauce, paprika, salt, and pepper. Cook for 1 minute, then remove from the heat.
04 -
Let the beef mixture cool for 8-10 minutes. Stir in the chopped pickles and shredded cheddar until evenly combined.
05 -
Unfold the cold puff pastry sheets on a lightly floured surface. Roll lightly to smooth the folds, then cut each sheet into 4 rectangles.
06 -
Spoon 2-3 tablespoons filling onto one side of each rectangle. Fold the pastry over the filling, press the edges together, and crimp with a fork. Cut a small vent in the top of each pastry.
07 -
Beat the egg with 1 tablespoon water. Brush the pastries with egg wash and sprinkle with sesame seeds if using. Bake for 18-22 minutes, until puffed and deep golden brown.
08 -
Let the pastries cool on the baking sheet for 5 minutes before serving so the filling settles.