Mix all the ingredients for the marinade well. Place the fish in the marinade, cover and leave in the fridge for at least 2 hours (or overnight).
Step 2 : Cook the fish
Preheat the oven to 180C/360F/gas 4. Chop the peppers, spring onions, carrot and ginger into fine strips for stir frying and slice the mushrooms.
Take the fish out of the marinade and place in a roasting tray, reserving the marinade. Cook the fish in the oven for 8-10 mins.
Step 3 : Cook the vegetables
Meanwhile, boil the noodles to pack instructions, drain and set aside. Heat a wok or large frying pan and add the marinade from the fish. Heat and add all the veg, beansprouts and ginger. Stir fry for 2-4 minutes. Throw in the cooked noodles and stir to heat and coat for 30 seconds.
Step 4 : To serve
Serve in warm bowls or plates with the salmon on top, and coriander leaves scattered over.