Prepare everything necessary. The dough used here is puff pastry, but you can also take yeast dough. The main thing is that it should be unsweetened.
Heat the pan, pour in vegetable oil. Put a quarter of the onion ring and fry over medium heat until soft. Then add grated potatoes on a beet grater.
Fry, stirring, for 5-7 minutes, so that the potatoes soften slightly. Lay out the minced meat.
Keep on the stove, breaking up lumps with a spatula, until the meat lightens. It is not necessary to bring it to readiness, as the pie will still be in the oven for quite a long time.
Roll out two-thirds of the puff pastry to a thickness of 3-4 millimeters, cut to the desired size, leaving a couple of centimeters on the sides to later turn up. The diameter of the pie here is 23 centimeters, and the dough blank itself is 26 cm. You can make a mark with a plate to see where to lay out the filling. Prick with a fork, so the dough does not puff up during baking.
Distribute the potato-meat mass.
Sprinkle with grated cheese.
Roll out the remaining dough thinly and cut into strips, you can use a figured knife. Put on the pie, forming a grid. You can also design the top at your discretion, just be sure to make a hole for the steam to escape.
Turn the free edge upwards.
Brush with yolk, sprinkle with sesame seeds.
Bake in the oven for 30 minutes at 160 ℃.
The meat pie is ready. It can be served both warm and after cooling. Bon appétit!