Is this porridge limited to buckwheat porridge, or what we in the United States would call kasha? I am sure the dish is not familiar to all Americans, but in any city that at one point had a large Jewish population, kasha is usually available. I quite like it in knishes with mustard.
We in the United States would probably still call that kasha with meat. Would каша also be used for oatmeal porridge or porridge made from other grains or pulses? We rarely use the word porridge, since we have words for all the porridges--kasha (buckwheat), grits (corn/maize), oatmeal (oats), cream of wheat (wheat, actually a brand name).