The only one of my kids in school is 16, but he loves bite-sized food, so some of his favourites might work for your daughter

I'm assuming you don't need ideas for fruit/ veg, just carbs and protein?
- hummus and pita or pretzels
- crackers and slices of cold sausage and/ or cheese
- mini pitas with cream cheese and a slice of cucumber inside
- pizza puffs (mini muffins with pizza ingredients in them- pepperoni, cheese, green peppers, sliced olives)
-chick peas
- homemade trail mix (pretzels, dried fruit, etc.- just leave out the nuts)
- baked cinnamon-apple chips or sweet potato chips
- homemade whole-wheat and oat cookies with raisins
- these are a new favourite:
http://www.hellowonderful.co/post/YU...rful%20readers!
- homemade chex mix (leave out the nuts)
- triscuits baked with cheese