Zo Mein lends itself well to just about any stir-fryable vegetables you have in the fridge: these are simply suggestions. We are chili-heads in the Frank house, so we use THREE tablespoons of Sambal. This version is much milder. If you're heat-averse, you can leave it out altogether. Note that you can do all of the vegetable prep in advance so that making the actual meal is a snap!