I asked my mum if I could make the noodles today, because we've had them hundreds of times but I've never actually made them. It's pretty simple and I did a lot of experimenting with whatever Chinese sauces we had in stock at the time.
Just fry about 1/2 an onion and a small chunk of peeled and finely chopped ginger in a wok with sesame oil. Pan-fry some chopped tofu in a skillet and wash and chop some beans and broccoli. Add the vegetables and the tofu to the wok with some soy sauce. Cook and add some hoisin sauce & black pepper sauce (maybe start with a teaspoon of each).
Cook the noodles according to the instructions, add them to the wok, add more soy sauce, hoisin sauce and black pepper sauce to flavour it. Lightly toss the noodles to even out the colour. Season with salt and serve!
This is just a template- use any other vegetables you want, any other soy products, or any meat and add chinese seasoning if you have some.