Okonomiyaki (お好み焼き o-konomi-yaki?) is a Japanese savoury pancake containing a variety of ingredients. The name is derived from the word okonomi, meaning “how you like” or “what you like”, and yaki meaning “grill” (cf. yakitori and yakisoba). Okonomiyaki is mainly associated with the Kansai or Hiroshima areas of Japan, but is widely available throughout the country. Toppings and batters tend to vary according to region. Tokyo okonomiyaki is usually smaller than a Hiroshima or Kansai okonomiyaki.
(source: Wikipedia – https://en.wikipedia.org/wiki/Okonomiyaki)