HI Stacie,
Cinderella's Royal Table and Be Our Guest are favorites of my little girls. That being said, those generally book up far in advance (up to 180 days ahead of time). If you can't get those, you can try for
Princess Storybook Dining at Akershus in the Norway Pavilion in Epcot.
If your little girls are fans of the 100 Acre Woods characters, Winnie-the-Pooh, Eeyore, Piglet and Tigger are a lot of fun at the Crystal Palace in the Magic Kingdom.
Mickey, Minnie, Goofy, Donald and Pluto greet guests at Chef Mickey's in the Contemporary resort and the "Fab Five" are sure to make them smile too.
Wishing you a wonderful vacation,
Kaylene