I have finally tracked down some silken tofu to try at home. I also happen to have a fridge full of pak choi from my vegetable box. I'm thinking of doing some stir fried veg - maybe some onion, the pak choi, a few baby corn that are knocking about with garlic and ginger and then either adding some hoisin sauce or just doing lime and soy sauce. If I want to heat the tofu, should I just put it on top at the end and stick the lid on to warm it through or just stir it through the hot veg and noodles/rice? Will this be nice?