In a bowl, mix the cottage cheese, eggs, sour cream, and salt to taste.
For a pie, we need two sheets of pie dough.
Brush a sheet of phyllo dough with melted butter, place another sheet on top, brush again with melted butter, then divide into three equal parts, trimming the edges slightly.
Add filling to one edge, fold the edge slightly, then the sides; add filling to the second part, fold the sides, cover with the first part, and once again fold the edges of the third part.
Transfer the pies onto a baking tray lined with parchment paper, brush them with beaten egg, and bake for 40 minutes at 180°C.
