Grate the cheese on a coarse grater.
Roll out the dough in a thin layer and put cheese and sausages on top.
Roll up the dough and cover the edges.
Cover the baking dish with parchment and smear with butter.
Put the rolls in a circle in a circle like a snail.
Beat the egg with kefir and grease the pie well.
A cheese snail is baked at 180 degrees for about 40 minutes or until a golden crust appears.