Cauliflower sambal

1 whole cauliflower, stalk and leaves removed and florets grated

1 good handful of coriander, chopped

1 large onion, thinly sliced

2 green chillies, sliced

juice 1 lemon

2 tbsp rapeseed oil

1 tbsp yellow mustard seeds

2 tsp fennel seeds

2 tsp cumin seeds

1 tsp ground turmeric

2 tsp mild chilli powder

2 tsp ground coriander

good pinch of salt

350g unsweetened desiccated coconut flakes

brown rice, to serve