There are a couple of options, Cabana's and one of the Main Dining Rooms (MDR). Both are buffets with the same food choices. We prefer the MDR because you are seated at a table and a waiter brings your drinks. In Cabanas you go through the line to get your food and then walk around looking for a place to sit. Oh yes, doing that while wrangling your carryon luggage too.
And at Cabanas if you like brewed iced tea, you're out of luck as they only have the crud from the fountain! So, I'd also be adding the chore of brewing my own tea and getting multiple cups of ice to make my own brewed iced tea. That's why I'm always at the MDR!