Minnie is not a regular at Ohana. One year we were told Lilo got grounded by Nani and Minnie filled in for her (this was a few years ago).
Ohana breakfast is our "tradition" breakfast. We've had one bad experience (last seating, characters going off shift before we got our food) but in general we go early, have a good time. Food isn't fantastic (never is at a character meal) but its OK and we don't have to get up and down to get it.