Tracie,
OK, let's start with the character meals. I would suggest you choose 5 of the following 7, which I list in order of preference;
Some special family moments can be made around just about any conceivable family interest. Many will simply be the time you spend together, whether at a meal or walking down Main Street, U.S.A. The key here is to let your parents be there for the whole experience. That means pacing your activity for them, as much as for your kids.
A final idea is an evening on the
BoardWalk. It is just the right speed for younger children and grandparents. Dine there (maybe the new Kuzzina). Then enjoy a quieter fun, strolling the planks, enjoying the street entertainers, and grabbing a scoop of ice cream.
Please let me know if I can provide more specific ideas by telling me more of what you like to do!
Have a magical vacation!