Oh, where to begin......
We liked:
1) Sunshine Seasons at EPCOT - Lots of variety, you can get basically everything that you could ever want. Kids learned to eat with chopsticks
2) Columbia Harbour House at MK - Love the fish and chips
3) Pinnochio's VillageHaus @ MK - Great Panini's and if you are lucky you can get a table that overlooks IASW and offer bon voyages to the departing parties.
We would NOT recommend Cosmic Ray's. Boring, blah, not a very convenient setup.
We also liked the Asian Noodle Salad at CBR.