Cit chicken and cucumber into cubes, grate 2 eggs.
Mince onion and fry in oil.
Salt prepared ingredients, put in a mold in layers, following the order: potatoes, 2 fillets, onion. Pour with a part of mayonnaise. put over mushrooms, then the remaining fillets and eggs. Pour with mayonnaise and season with cheese.
Bake until crust appears.
Top the salad with greens and tomato slices.