Stirring, add 2/3 Cup hot water. Kneading dough. It should get soft and not sticky. Cover the bowl with the dough and leave for 20 minutes.
Meanwhile, chop the onion and fry in the remaining vegetable oil. Add mushrooms and soy sauce, cook 3-4 minutes, add beans and tomato puree, salt and spices to taste. A little stew, stirring.
The dough is divided into 9-10 parts, roll out and fry in a heated dry pan for 50-60 seconds. on each side. I got 9 cakes with a diameter of about 28 cm so that the cakes do not dry up before serving - put them in a pile and cover with an x/b towel.
On hot cakes put the filling and roll roll or envelope. If all the cakes are not eaten immediately, they can be folded into a bag or wrapped in a film and put in the refrigerator (they can be stored up to 2-3 days), then they can just get and heat.