Claire,
If it's sit down places you want for dinner, there are several options:
Crystal Palace is a great place to wind down from the parks and has a beautiful setting. It is also a character buffet with Winnie the Pooh and friends.
Liberty Town Tavern is supposed to be good for dinner and is also a character meal with Goofy, Mickey and Co. dressed as Colonials. Food is a Turkey feast and brought to you.
For non character meals there's Cinderella's Castle (has quite a following and supposed to be good food), Plaza Restaurant (good sandwich fare), Tony's (seems to be hit or miss here), and maybe another one but I can't remember...
These probably all need a PS.
For counter service (but still a sit down feel) there is my favorite, Columbia Harbor House (fish, soups, chicken and great atmosphere), Pecos Bills (hamburgers, etc. and a great fixings bar), Tomorrowland Terrace ( I think it has some out of this world entertainment along with pretty good food), Pinnochio Village Haus ( burgers, salads ect. and a cute theming), and various other places like Casey's (great hotdogs).
There really is a giant assortment of places to eat dinner in MK! I'll bet others can give even more info depending upon what type of dinner you are looking for.
