Ethiopian Sunday Brunch Buffet
the only ayce ethiopian buffet lunch with which i'm familiar is served only on weekdays. irrc it's primarily vegetarian (maybe completely vegetarian?) it's served at nayala monday through friday.
the vegan ethiopian restaurant, rahel, also serves an ayce option only on weekdays, but it is not a buffet (they serve a plate of food and if you want more of a particular dish you ask for more) and, of course, there is no meat nor dairy served there.