Personally I think salads are underrated and little explored - Whilst on a stag weekend whilst others were tucking into dog knows what, I had the only veggie option of feta and balsamic salad. That was probably 5 years ago and I have had salad for my work lunch almost every since trying out various things, but I'm sure people have been more inventive than me. Personally I like baby spinach and rocket with sunflower seeds, walnuts, roasted soya nuts, pine nuts (grilled ones are better), sesame seeds, pumpkin seeds, mixed berries, veggie feta chopped, chilli flakes, soya bacon bits, dried basil and then add your favourite dressing. I'm currently on basil and balsamic honey and mustard (not the low fat one) used to be nice. The more basil the better. It's easy to experiment and pretty hard to get it wrong unless you use too much of something like white wine vinegar, at that point it's like drinking fermented horse wizz out of a bush (I'd imagine!?)