Hi Cheryl.
All children under the age of 3 may dine from a parent or sibling's plate throughout Walt Disney World's park & resort dining locations.
At casual, counter service dining locations, you can opt to allow your littlest one to share your meal, or purchase an inexpensive children's meal for her.
At Character Meals, you should ensure that your reservation includes your daughter in the total number of Guests dining, but you will not be charged anything for her. At a buffet restaurant, your daughter can eat from your trip to the buffet.
A few affordable Character dining options I'd highly recommend include breakfasts at
Cape May Cafe,
Crystal Palace with Winnie the Pooh and friends or
Hollywood & Vine for Disney Junior Play 'n' Dine. If you'd enjoy an experience with the Princesses,
Akershus Royal Banquet Hall's Storybook Dining is fantastic and includes a complimentary photo package per group of 4 paying guests.
Wishing you a Magical time on your Walt Disney World vacation Cheryl!
Kirsten