Something healthy and Japanese? Why not try matcha red bean buns? My buns came out real soft after cooling! Love it! They have very strong taste of matcha but the overall taste is not sweet. I did my own red bean paste and was careful not to add too much sugar during the process. I wonder if I should add more sugar to the dough so as to achieve a sweeter version of the buns. Room for improvement.
Anyway, ohayo gozaimasu!