Attn: Expert Lunch Packer's

Ok all you expert lunch packer's (is that a union organization?) oh wait that's meat packer's union, never mind, anyway this is my first year packing a school lunch for my daughter who is in Kindergarten and I need some creative ideas. I'm good with the side dishes.....applesauce, apples, yogurt, banana, chips etc....what' I'm looking for is main dish ideas that can go in a lunch box, so far I've done sandwiches, burrito (I just spread refried beans and cheese on a tortilla and wrapped it in plastic). What else can I do? It has to be something that is fairly easy to open and doesn't have to be heated up!