The Hoop Dee Doo Musical Revue (a dinner show at Fort Wilderness Campground - you won't need a park admission) is a ton of fun. It's an all-you-care-to-enjoy family style meal of salad, cornbread, barbecued chicken and ribs, beans and shortcake (and with beer, wine and sangria included in the price - not something you see much at WDW!) and a charming old-timey western musical with fun, interactive numbers and slapstick comedy.
What characters are they most interested in? Chef Mickey's is where you can see the Fab 5 all at once, though many people have said the food is mediocre. Trattoria al Forno at the Boardwalk has Flynn Rider and Rapunzel. (Haven't eaten there, so can't say whether it's tasty.)
If your kids like dinos, T-Rex in Disney Springs might be worth looking into.