Prepare everything necessary. Thaw the puff pastry in the refrigerator. Fresh wild mushrooms should be pre-boiled, while champignons can be used raw.
So, cut the mushrooms into pieces, put them on a heated pan with oil. Fry over medium heat for 2 minutes, add a quarter ring of onion.
200 g mushrooms, 2 pcs onion, 1 tbsp vegetable oil
Keep until the onions are soft and lightly golden. Transfer to a bowl. Add sour cream.
1 tbsp sour cream
Grated cheese, minced garlic, salt and season. Mix.
70 g cheese, 1 clove garlic, 1 pinch salt, 1 pinch pepper
Roll out the puff pastry to 2-3 mm. Do this in one direction to keep the layers. Cut into rectangles. Their size depends on how big or small you want the pies to be. Put mushrooms on one half. Make cuts on the other part, they can be in a chaotic order, steam will come out through them. Lay the free edge of the dough over the filling. Press down the sides with a fork.
200 g puff pastry
Move to a baking sheet, brush with beaten egg, sprinkle with sesame seeds
1 pcs egg, 1 tsp sesame
Bake in the oven at 170 degrees for 20 minutes. The mushroom puff pastries are ready.