Sanaa at Animal Kingdom Lodge - Kidani Village for lunch might be fun. I recommend lunch vs. dinner because there are windows to the savanna and you are able to see animals during the daylight (not guaranteed you'll get a window table or that the animals will be active but can walk out to certain viewpoints throughout the resort either before or after your meal). Fun to explore the main resort as well.
Geyser Point over at Wilderness Lodge is another fun spot - covered but open air lounge by Bay Lake. At night I believe you can see the water pageant and fireworks. Also at Wilderness Lodge, a lot of people like Whispering Canyon. I haven't been but there's a bit of an experience in that the servers are notoriously sassy.
Primo Piatto (quick service) or Bar Riva (lounge) at the Riviera on the skyliner are both good. Nothing "special" per se about the restaurants themselves but the skyliner is fun and the resort is beautiful to explore.
If open to splurging one night, California Grill at the Contemporary is lovely with a view of MK fireworks. Similarly, Topolino's at Riviera has a view of the EP fireworks. Jiko at Animal Kingdom Lodge is another favorite and the resort is full of things to explore.
Have a great trip!!