Oishii na! I'm going to talk about the oishii traditional Osaka food - Takoyaki-san! Anyone that hasn't try it before should try it!

Takoyaki (たこ焼き or 蛸焼?) (literally fried or baked octopus) is a popular Japanese dumpling made of batter, diced or whole baby octopus, tempura scraps (tenkasu), pickled ginger, konnyaku, and green onion, topped with okonomiyaki sauce, green laver (aonori), mayonnaise, and katsuobushi (fish shavings), originating from Osaka. There is a similarly named dish called ikayaki but it is a broiled whole squid and bears no resemblance. "Yaki" is derived from "yaku" (焼く?) which simply means "to bake or grill" in Japanese, and can be found in the names of other Japanese cuisine items such as teriyaki or sukiyaki.
Information source: Wikipedia~