define fun
is she looking to dress up and have an 'adult' dining?
does she want to have characters and the full Disney experience?
For grownup night, I would suggest CG. The view is amazing, seeing fireworks from the top is an experience unto itself. Check the menu, make sure there is something she would like
For more 'fun', how about one of the character meals? So many both in and out of the park
You can also order custom cakes (which can be very pricey but gorgeous!) to be delivered tableside
Dinner shows too, Hoop dee doo could be fun fun
Has your DD indicated any preference?