I selected "Nothing" because I'll eat anything and 99.999% of the time like it. And if I don't like it, it's only like "Meh...I could live with out it" as opposed to "yuck~".
I grew up eating lots of cajun food, so Okra never strikes me as being Japanese. I've prepared and eaten it many times both Cajun and Japanese style though.
I've had many first experiences with Japanese food not knowing what I'm eating. The first times I ate kanimiso, konnyaku, basashi, octopus, and uni I had no idea what they were. Well, I figured out the octopus when I noticed many tentacle shaped parts. Every time I was just like "Hm, that tastes pretty good."