Preheat the oven at 200 C / 400 F
Working with a few puff pastry squares at a time
Fill one half of each square with a generous amount of ground meat filling making sure to leave the edges clear.
Apply a light smear of water on the edge
Then, flip the second half of the square over.
Use a fork to seal the top and bottom edge. Put it back in the fridge to chill again.
Do the same with all the other puff pastry squares
Place the chilled meat patties on a baking tray.
Brush each pastry with beaten egg. Sprinkle with sesame seeds.
Bake in the preheated oven for 18 to 22 minutes until lightly golden.
Let cool at least 10 minutes before you serve.