Preheat the oven to 200°C and let the frozen puff pastry thaw at room temperature.

Chop the cabbage roughly and mince the garlic after removing its core.

Heat olive oil and garlic in a pan over low heat until fragrant. Add ground meat and cook over medium heat until browned. Add cabbage and stir-fry for 2 minutes until softened. Mix in ketchup, Worcestershire sauce, and salt and pepper. Remove from heat and let cool.

Roll out the puff pastry sheets and cut each into 6 equal pieces. Place 1/6 of the filling on one piece, cover with another piece, and seal the edges with a fork. Make 2 slits on top. Repeat to make 6 pies.