1) Preheat the oven to 200 degrees C.
2) Pour the coconut milk into an ovenproof dish with the cod. Sprinkle over the herbs.
3) Put the veggies on some foil and drizzle the olive oil over. Close up the foil tightly, leaving a bit of room inside for steam to circulate.
4) Put both the fish and foiled veg into the oven and bake for about half an hour. The fish should be firm and flake easily. Serve with lemon slices.