After removing the base from the oven, immediately spread the squares of melted cheese on it, retreating from the edges along the perimeter. On the cheese, spread a layer of mushrooms with onions, level. Do not lay the edges around the perimeter with the filling, the layer does not need to be very thick, in the process of wrapping in a roll, it can come out. Chop the greens finely and sprinkle the mushrooms with onions. Easily wrapped in a roll. I wrapped it in a roll with a smaller side, so the roll will be thicker! The dough is not torn, pliable, perfectly wrapped and the roll turns out very neat. We place it on a wooden board or a serving dish.