We went in '05 so unless they have changed here is what we experienced.
When you arrive they take your picture with a sign say MBB. Then you proceed to a rope, wait for the rope drop and proceed to grab a table. They are VERY long picnic tables. HUGE SUGGESTION: GET ONE CLOSE TO THE STAGE. If you get one further back or to the side you won't see the antics, join in on the fun with Mickey and Minnie. The food is buffet on the opposite side of the stage area.
IMHO, we won't be doing it again. People can be so rude and think that the entertainment is only for their family. Lots of pushing their kids up so make sure they get picked etc. All for medicore at best food.
Hope that helps.