Two years ago when I went to Japan with my parents, we were walking around Ikebukuro and we couldn't find any place to eat. We stumbled upon a cute little local okonomiyaki restaurant... we didn't even know what okonomiyaki was! We knew no Japanese and the waiters, waitresses and manager did not know any English....
Right, it is known as "Japanese pancake". It is fun to make it yourself on the hot plate. If you are in a group, it is better because you can try different types and also compete to see who does the best job in turning the okonomiyaki upside down.