Hi Mikki!
This will be a great time of yEAR to travel. Character Dining is an excellent way for your princess to meet her favorites! If she's a big fan of Mickey Mouse, I'd encourage you to book an Advanced Dining Reservation at
Chef Mickey's, located at Disney's Contemporary Resort (just a monorail ride away from Magic Kingdom!) or
Tusker House, located at Disney's Animal Kingdom. You can do so by clicking the links or by calling Disney Dining at 407-939-3463.
Given these reservations often book up 180 days in advance, you'll want to book a breakfast as soon as possible. If available, try to book a less popular time of the morning. In our experience, guests will have ample time to interact with the characters if fewer tables are occupied in the restaurant.
Have a magical visit, Mikki!
Sherri