I know that there are lots of great ideas on the other links, but here are a few from our house. My daughter loves some of the GoPicnic gluten free lunches -- they come in little boxes about 350 calories, mostly organic / preservative free, really healthy options. Of course her faves are the ones that are more junk-foody. The one called Turkey Stick Crunch is her favorite. It comes with a turkey jerky stick, bbq popchips, a fruit leather strip, a seed & nut mix, and a small chocolate. They're high-priced, so we just keep them on hand for food emergencies. I leave one in my office, one in the van, and some in the house, but they're not for everyday.
For every day lunches, we do ham & cheese on toothpicks (rolled up), a couple of pieces of fruit, some carrots, a yogurt, and a drink. Sometimes a bag of chips. My daughter never has liked bread, so she usually passes on the gluten free breads, but occasionally she wants to take a grilled nutella sandwich. Sounds strange, but it's delicious. Carrot sticks, celery sticks, and anything else that can be chopped small and arranged cutely in a lunch box are great. I overpack her lunch because she's always starving after school and I want her to have some options left to nibble on before we get home.
9 year old daughter diagnosed celiac November / December 2012
Postive endoscopy / biopsy, positive antibody test, positive genetic test
She's been gluten free since diagnosis. I've been gluten free with her since Jan 2013.