1. Put the shallots in a small, non-metallic bowl with the soy sauce and ginger. Cover and set aside to marinate for 20 minutes. Drain, reserving the marinade.
2. Heat the oil in a wok or large frying pan and add the shallots. Stir fry for 3 minutes, until starting to turn golden.
3. Add the chilli, and garlic and stir fry for 1 minute, then add the prawns and stir fry for another 2 minutes, until they have turned pink.
4. Add the spring greens to the pan and stir fry for 2 minutes, until just tender. Pour in the reserved marinade and simmer for 30 seconds. Add the cooked noodles to the pan and mix well. Serve straight away.