I think u can include japanese dishes (ramen, gyozas, curry chicken cutlet with rice -i forgot the real name- etc…) or the fact that if the asian friend is sad, or just fought with his parents, that his mother (or even father) enter his room with sliced fruits in a plate in order to cheer him up or to apologize, because it’s common and not a pejorative “stereotype” (thats just my opinion other asians may not agree idk).
As for the stereotype to absolutely avoid idk, but if u have something in mind to do with ur asian character and ur not sure ask me i’ll reply!