Nick, what do you think looks strange? I ask because my 14yo daughter thinks anything that's not a sandwich looks strange, so that's kind of a challenge. She also doesn't want to carry any little tupperware containers. Stay away from teenage girls - they are nothing but trouble, lol.
Can/will you carry a reusable lunch bag and containers? That will give you a lot more choices. Are big hunks of meat (cut up) too weird? Are your parents on board with whatever you want to eat? It will be easier to make suggestions if you can give more details.
Also you should post in Primal Nutrition. I think a lot more people will see your question there.
CW-125, part calorie counting, part transition to primal
GW- Goals are no longer weight-related