Thawed roll the dough, cut into 6 pieces. Grease the ramekins with vegetable oil in them to lay the dough. Bake in preheated oven for 15 - 20 minutes. Ready tartlets out of the molds and lay them on a baking sheet moistened with cold water. Onions and mushrooms chopped. Fry the onions, add the mushrooms. Roast for 10 minutes, add sour cream, salt and simmer for another 3 minutes. Grate the cheese. Tartlets put in ramekins, Julien lay on the tartlets, sprinkle with cheese and bake 5 - 7 minutes at 200 ° C. Bon appetit!