Cheapest meals inside magic kingdom we have had out of pocket is basically your hamburgers , hot dogs, BBQ, Chicken Nuggets.
EPCOT:Liberty Inn should be able to get a meal with fries and large drink for about $12.00 or cheaper. Cheese burgers, double cheeseburger, Chicken Nuggets, BBQ Pork Sandwich, Hot Dog.
ANIMAL KINGDOM: Restaurantosaurus(was one of the best meals we have ever had because we were tired, hungry, and escaping a rainstorm LOL!/ Flame Tree BBQ (have read was good and would like to try)
MAGIC KINGDOM: Cosmic Rays offers a pretty good variety./Columbia Harbour House(have read was good-Chicken & Fish & Chips) / I have reserved Plaza2011 to pay out of pocket. I think about the cheapest restaurant to reserve & hoping more than a hamburger to eat! Sandwiches/hamburgers/salads/icecream deserts
HOLLYWOOD STUDIOS : Rosies All American Cafe /hambergers/chicken nuggets/garden salad/soup of the day
CHARACTER DINING EXPERIENCE/EPCOT/Norways Akershus story book Princess ($90 for 3 adults -2007)A good meal/which was cheaper than Magic Kingdom Cinderellas Royal table
THIS YEAR 2011/ANIMAL KINGDOM/Tusker House character Breakfast to pay out of pocket/ I'm hoping is no more than $25 each adult.
DOWN TOWN/Rain forest (good meal)
SNACKS OR SMALL MEALS/My niece likes the turkey legs & pretzels, My husband and I like the Dole Whip, my daughter thinks it is to sweet. She likes the icecream floats or mickey bars.
We all carry water and I usually take a couple packs of crakers&peanut butter and my husband takes a bag of peanuts.