Not sure what to recommend as the only TS I've had in MK is lunch at Liberty Tree Tavern (lunch was delicious but I'm not sure about their Thanksgiving family style).
What we are doing next month is an early res at 1900 Park Fare at Grand Floridian and then heading over the MK to catch Specto at 7 followed by Wishes at 8. I think having the first available res (430) plus it being a buffet, we'll have plenty of time to get a great viewing spot for the parade (many recommend finding a spot near Frontierland) and then move along Main Street for the Fireworks.
Have a great trip!