I've been working on this since last Friday, it took a while to finish because of distractions, I apologize for that.
At any rate, a few days ago, I've become a firm believer of Kakyoin being a food lover that grew during his travels, in both the journey and his family's holidays. I say that after rewatching a bit of Stardust Crusaders' "Tower of Gray" and "Death Thirteen" episodes and rereading @goatspiracy headcanons on Tumblr.
Here's a list of foods he ate or would've eaten in the series:
Tonkotsu Miso Ramen, a classic dish from his home country of Japan
Fresh Spring Rolls, a summertime favorite from Vietnam
Loco Moco, a hamburger dish from the Hawaiian Islands
Kimbap, a sushi-like dish popular in South Korea
Curry with rice and naan bread, a spicy delicacy from India, as seen in the "Emperor and Hanged Man" arc.
Congee with pork and century egg, a type of porridge popular in China and Hong Kong, as described by Kakyoin in the Silver Chariot arc.