Definitly Circus McGurkus. We just ate there this last May. It's AIRCONDITIONED!!!!!! And you can fill up on free ice water.
The Green Eggs and Ham thing is outside. (Had ice cream there, later!) It's a really neat place. Pizza, chicken, pasta, among other things to choose from.
We were there on a Friday, with Front of the Line access, and there were lots of teens running around the park. When it was lunchtime, I told DH to head the opposite direction of the teens, which was of course, Seuss Landing!
Ate right away!