Potato salad with smoked herring and mushrooms was never particularly diet. And that means, and advise it to everyone, without exception, it would not be correct. But it's so delicious. Insanely delicious. Especially since we do not pechёm cakes and bake in the oven pork leg every day (although such individuals, I know). And periodically, "on holidays", and you can prepare this simple and delicious salad of herring and mushrooms.