Chargrilled fish with green chilli, coriander and coconut relish

Ingredients (serves 4): 1 small red onion, finely chopped 1 tsp finely grated fresh ginger 1 tsp mustard seeds 20g (¼ cup) shredded coconut 1 truss tomato, seeded, finely chopped 1 long fresh green chilli, seeded, thinly sliced ¼ cup chopped fresh coriander 1 tbs lime juice Pinch of caster sugar 4 (about 150g each)…