According to Yonekichi operations manager Sakura Yagi, “rice burgers” are big at fast food restaurants in Japan. She’s contracted an outside company to create an “exclusive,” additive-free, compressed rice patty for the United States shop, and while she won’t say much more than that, one employee told us it holds together simply because “Japanese rice is sticky.” The patties are totally salt-free “to keep it simple and preserve the taste of the rice,” said Yagi.