There's a fun cookbook called Roald Dahl's Revolting Recipes, in case you ever want to actually eat Snozzcumbers, Frobscottle, Lickable Wallpaper, or Mr. Twit's Beard Food. My son and I made Bunce's Doughnut's (from Fantastic Mr. Fox) and they were very good. Another great children's food book is Bread and Jam for Francis by Russell and Lillian Hoban. A recent book in a similar vein is Yoko, by Rosemary Wells. Both books contain great ideas for bag lunches if your kids are stuck in the PBJ sandwich rut, and I know of more than one kid who's tried sushi because of Yoko.