When I interviewed there two years ago it was a group interview which made me even more nervous. You're group is in alphabetical order and it'll be either this weird competition where people rehearsed the crap out of their answers (which just makes everything awkward), or a normal group discussion. My group fed off of each other which was cool and I'm pretty we were all accepted although none of us went there.
My advice is don't just memorize answers because I heard a lot of that went on and it kind of shut down conversation rather than opened it up or continued it. Just what I heard from people in the other groups though. Good luck.
Breakfast ins't really breakfast so eat before.