If all products prepare in advance, then the salad can be made almost instantly. (The cooking time indicated in the presence of ready-made ingredients). So, boil the potatoes in their skins, cool, cut into cubes. Heart boil to readiness, to cool, cut into strips.

Eggs boil, clean. Separate the whites from the yolks. Proteins grate on a coarse grater, and yolks - for small. With mushrooms drain the marinade. And now formed the salad, laying out the ingredients of the balls, each ball lubricating mayonnaise: heart - potatoes - mushrooms - egg white - egg yolk. Optionally garnish with greens. Let stand about 30 minutes.