Make a kids recipe book for your family- with pictures and text to help all kids cook in the kitchen! from thirtyhandmadedays.com
The Help Yourself Cookbook for Kids by Ruby Roth
The best kids cookbooks for kids who are interested in actually learning to cook, not just kitchen project one-off's: The Forest Feast for Kids by Erin Gleeson
Gotta get this book along with some others mentioned in the comments area.
Get the kids involved in making their own meals with these super easy DIY Pitta or Naan Bread Veggie Pizzas! | My Fussy Eater blog
Recipes for Healthy Kids--free cookbook for downloading. Recipes scaled for home, child care centers or schools//
Southern Living: Kids Cookbook: 124 Recipes Kids Will Love to Make and Love to Eat (Southern Living (Hardcover Oxmoor))
Mollie Katzen'd popover recipe (super simple, for kids actually).
Free kids' cookbooks to download, including one from the 50s. Imperial Sugar- My First Cookbook 2011
An easy Autumn recipe for apple tarts, perfect for cooking with children.