Heat the oven to 200c. Place a flat tray in the oven to heat up.
Pound the pesto ingredients together in a pestle and mortar.
On a round piece of paper, sit the fish; and then, top with pak choi, ginger, beansprouts, soy onions and lemongrass.
Sit another fish on top, skin side up, then seal and roast for 8 to 10 minutes.
Warm the noodles, then add the onions, coriander and pesto, and give a big stir.
Open up the parcel and serve this with the noodles. Top with more pesto if desired.
