Nearly every cuisine has some form of
noodles, some form of
sausage, and an item that equates to a pocket of dough with filling inside (the near-infinitude of which includes the
arepa, the
empanada,
ravioli, the wonton, and so forth). Knishes are different from most in their thin, moderately flaky crust and selection of fillings, being something like a cross between
Jamaica's entry in the dough-with-filling sweepstakes, the substantial and lightly crusty Jamaican beef patty, and
Poland's entry, the pierogi). Like the pierogi, the most common fillings include
mashed potatoes,
sauerkraut,
meat, and various
vegetables including
spinach. An innovation particular to the knish is kasha (or
buckwheat groats) as a filling.