Place the glass noodles in a bowl, pour water over the top and leave to stand for approx. 5 mins. Rinse the noodles in cold water, drain, cut into pieces with scissors.
In a bowl, mix together the melon, spring onion and chilli.
Combine the lime zest and juice with all the other ingredients up to and including the garlic. Pour the sauce into a small pan.
Heat the sauce, season the scallops with salt, add them to the sauce, cover and cook on a medium heat for approx. 6 mins, turning once. Remove the scallops from the sauce, mix the sauce and the glass noodles, stir into the salad. Scatter the coriander over the top, serve with the scallops.