Season the fish fillets with salt and pepper, then place them, skin side down, in the middle of a large sheet of baking paper or foil.
Peel and chop the garlic & ginger. Deseed the chilli and finely chop. Slice the spring onions.
Heat a wok and add the groundnut oil. Once hot, stir-fry the ginger, garlic and chillies for about 2 minutes golden. Turn off the heat and add the spring onions and the soya.
Spoon this mixture over the fish fillets. Add a few drops of sesame oil and squeeze some lime juice over them.
Wrap the paper/foil around the fish creating a parcel.
Put this in a baking tray and bake in the oven for about 10 minutes at 180°C.
Take it out the oven and let it rest for 5 minutes then carefully unwrap it.
Serve with stir-fried vegetables and steamed rice.