My Chinese chicken salad is a favorite with my kids. This recipe has just four ingredients (no chopping required!) and an easy homemade dressing. Pack the dressing separately, and let the kids drizzle it over the salad just before eating, so the lettuce doesn't get soggy.
Want something simpler? Try making hard boiled eggs. They're full of protein and a good source of certain B vitamins and minerals. Even better: You can make hard-boiled eggs several days in advance and just refrigerate them. Make sure you pack an ice pack in your child's lunch if you're sending a hard-boiled egg (or anything else you would normally keep in the refrigerator).
Try all of these recipes, and be sure to post reviews.
Chinese Chicken Salad image by Stephanie Gallagher 2012, licensed to About.com Inc.