I have a stash at work now for this reason
Tub of Jalna Vanilla yoghurt, throughout the week I bring in bits of fruit to put in with it, so it can be banana yoghurt, strawberry, peach...
Nuts, Musli Bars. Lots of Salads too with different cheeses (hard of course - swiss etc...) that I can pick at. At the moment I'm hopelesssly addicted to tomatoe and cheese sandwhiches :rollseyes: on nice fresh bread with butter haha... If I make up a pasta dish for dinner the night before I will bring that in to work as well and give it a good zap in the microwave... (I graze all day, it's a wonder I'm not the size of a house yet)

I hope those have given you a few ideas! The lunch time thing at work does get to be a bit of an issue when you're UTD, huh?