Cut the cauliflower into florets, cut the spring onions into rolls, finely dice the garlic and finely grate the ginger. Briefly toast the mustard seeds in the oil and then braise the spring onions and garlic until translucent and add the finely chopped chilli.
Now add the cauliflower to the pot and the spices. Cover the pot and stew the cauliflower in it for 20 minutes.
Finally pour the lemon juice and coriander over it.