Christina,
There are several to consider, and without knowing more about your party it is hard to say. But let me make a few general recommendations, assuming you are headed to the sports complex, and not to a park;
For a great starter breakfast, I loveĀ
Chef Mickey's at the Contemporary resort. The food is quite good, the setting is fun, and I find that even older kids like seeing Mickey and his friends.
A bit more on the expensive side, but if you have older kids who may not care for the cartoon characters any more, there is the
Spirit of Aloha show at the Polynesian. This luau has OK food, but it is more about the fun ambiance, and it is more fun for large groups than most restaurants.
A final selection, along the lines of the Luau, but with a western theme, is the
Hoop-Dee-Doo Review. This is even more large-group friendly, the food is not bad, and the hokey fun is good, unless you are here with older teens, who may find it too corny when hanging around with their teammates.
I am glad to offer further recommendations!
Have a magical (and delicious) vacation!