Hi Jennifer!
Thank you for sending your question to the Moms Panel!
You can make Advanced Dining Reservations (ADRs) for Table Service restaurants, including Character Dining Experiences, at (407) WDW-DINE or online
here. ADRs can be made up to 180 days in advance and it is critical as many Walt Disney World restaurants book up very quickly. In fact, a couple will book up close to the 180 day milestone!
My family's favorite Character Dining Experience is Chef Mickey's in the Contemporary Resort. We also enjoy the Garden Grill restaurant in the Land Pavilion in Epcot. I particularly enjoy seeing Mickey Mouse dressed as a farmer at the Garden Grill.
If you have daughters who would like to see Disney Princesses, I recommend considering a meal at Cinderella's Royal Table inside Cinderella Castle in the Magic Kingdom or Princess Storybook Dining at the Norway Pavilion in Epcot.
Enjoy planning and write back if you have any more questions!