Vegetarian meals for taking 'on-the-go'?

[iluvmyquarab]

I'm going to be working at a horse show from tomorrow through Sunday, and I have to work from 7am to midnight every day (pretty much), and I want to bring my own food (at least until I figure out what's at the concession stand).
I have already made some granola bars for snacks, but I need some food to bring for meals!! (The only thing I know that's vegetarian from the concession stand is nachos - just because it's vegetarian doesn't make it healthy!). Anyone have any good ideas of what I can bring? I don't think I'll have access to a microwave, and I only have about a 15-30 minute break for eating.

Oh yah, it should be something fairly healthy. I don't eat much cheese or anything with much unhealthy fats(I eat LOTS of healthy fats - probably too much!) , but I don't care about calories because I actually need a lot of those right now!

Thanks for any ideas!