Bit nosey but I am looking for some inspiration 
Lunch at my school is only 30 minutes so by the time I have tidied and set up my next lesson, I probably have about 20 minutes as we have to be at our doors before the kids start coming in.
No fridge in the department but I have a lunch bag with ice blocks. No microwave either and there are only 2 in school which means massive queues and a trek to the other side of the school.
I get bored of sandwhiches but can't really think of much else to have. Tried those pasta pots that you put water in with varying success. I can do salad if it's interesting but I'm not good at making it interesting.
So, would anyone be willing to share their lunch ideas to save me from sandwhiches every day for the next academic year?
I eat near enough anything so all suggestions welcome 