Heat the oil in a large wok or frying pan, add the onion and pepper and stir-fry for 5 minutes. Add the kale, broccoli and 2 tablespoons of water, and stir-fry for a further 2-3 minutes until the veg is just tender. Add the spice paste, soy sauce and pork, and stir-fry for 1-2 minutes until piping hot.
Add the noodles and 2 tablespoons of water. Stir-fry for 2-3 minutes until heated through. Serve garnished with the coriander.