Egg onion pie will be an excellent alternative to yeast dough piroshky. The dough for this recipe is prepared very quickly and does not require a long proofing. It is only necessary to combine all the ingredients to get a thick dough, which looks like fat sour cream. Very gentle, soft and fragrant dough on kefir in combination with juicy egg-onion filling will make this pie your favorite. If desired, other greenery, such as parsley, dill, sautéed sorrel or spinach, may be added to the filling.