If you want something on property my first choice would be Artist point.
For a wonderful Thanksgiving meal...off property..head to the Peabody reasort on International Drive and have the buffet at Cappriccios, they have all the food you could could possibly want almost as good as my home made, lol, and then every thing else. It is wonderful, we have done it many times.
Make a reservation. If you go for the first seating, arrive about thirty minutes early and see the march of the ducks.