Heat the oil in a large wok or deep frying pan, and stir-fry the vegetables for around 5 minutes - you want them to be slightly softened, but still with a nice bit of crunch.Add the curry paste and mix well (I used 3tbsp but if your paste is particularly spicy, or if you just like a milder curry, you might prefer to only use 2).Add the coconut milk and the fresh noodles, and season to taste. I also added around 300ml water - just add however much you need to get the curry/soup to your desired consistency. Cook over a medium heat for a few more minutes, simmering very gently, until the curry is hot.Stir in the chopped coriander, and serve.