You can feed your family very quickly if you make a kefir-based pie with ready-made vegetable, meat or fish filling. Canned food is best for this. We suggest you try making this pie with canned tuna and mackerel. In the first version, the pie will turn out to be very light and healthy due to the high protein content in the fish, and in the second it will be tender and very filling due to the high fat content of mackerel.