Hello, Jodi!
Well, the good news is that there are several fantastic restaurants within a monorail ride from the Magic Kingdom Park on your daughter's birthday!
Please
check out this list of Character Dining Experiences on Walt Disney World.com's website; there, you'll find a vast array of character dining opportunities, many of which are just a quick monorail ride away from Magic Kingdom Park. Any of the restaurants at Disney's Grand Floridian Resort and Spa, Disney's Contemporary Resort and Disney's Polynesian Resort won't be too far for you to hop out of the park and into a unique and delicious character meal for your daughter's special day!
Of course, if you are willing to be in another park on your daughter's birthday, there are other character dining options available at those, too. For example, we're especially fond of dining at Akershus Royal Banquet Hall, with the princesses, of course, because it uses only one Table-Service entitlement on our Dining Plan yet features great food plus all of our favorite princesses.
Please send me more questions as you explore the possibilities for celebrating your little princess's big day! I'd love to help!