Boil the meat in salted water and divide it into fibers.
Cut the mushrooms into slices and fry in vegetable oil. Let them cool slightly.
Grate cheese on a coarse grater.
Mix meat with mushrooms and cheese. Mushrooms must be warm so that the cheese melts a little. Just need to mix quickly so that the cheese does not stick together.
Season mushroom salad with chicken to taste and season with mayonnaise.