This article from Atlas Obscura explains about some of the food choices astronauts can make.
Of course, this is not to say that Koreans can’t have lasagna and Italians can’t have kimchi.
So what woud you take to space? Typical traditional Japanese foods like miso soup, rice, pickle and grilled fish? More modern Japanese foods like omu-rice, okonomiyaki or ramen? If you think that would be too hard to eat in zero-gravity, scan the article for “Space Ram”.
Skim the article for other interesting details like whether or not food in zero gravity is blander or spicier than it is on Earth, why crumbly foods like croissants can be dangerous, and how they dealth with kimchi’s strong smell.
My choice would probably be a different culture’s food each day of the week. Indian curry on Monday, Thai gapao on Tuesday, onigiri and miso soup on Wednesday, Korean bibimbap on Thursday, fish on Friday…