Heat the oil in a large saucepan over a medium heat, then fry the onion for 8 mins until translucent. Stir in the ginger and spices, and cook for another minute. Pour in the coconut milk and 100ml water, stir, then simmer for 10 mins.

Add the cod, frozen peas and sugar snap peas, and simmer for 5 mins until the fish is flaky. Serve with the rice, sliced chilli, a good grinding of black pepper and some lime wedges on the side for squeezing over.