I could tell it was fish! B)
Here, we have a lot of hamburgers...a LOT of hamburgers (and everything to an extent - a surprising amount of Chinese/Vietnamese/Indian food, due to all the people moving here from those countries). And of course, lots of Mexican food. :p
Another question: What is your country like, as far as social standards are considered? For example: America has no problem plastering barely-clothed pictures of women everywhere. :p I think North Korea is the complete opposite of America, as far as that's concerned (but I could be wrong).