Boil the potatoes until tender, and chop the mushrooms and onions.
Heat a frying pan with vegetable oil and fry the onions and mushrooms until tender, add salt and season with spices.
Mash the boiled potatoes, add wheat flour and egg. Salt and pepper to taste.
Dust your work surface with cornmeal and place 2-3 tbsp. l. potatoes and smooth. Place some mushroom filling in the center and pinch the edges.
Dip the zrazy in cornmeal. Heat a frying pan with vegetable oil and fry the zrazy on both sides until golden brown.