Fry mustard in the oil, once the seeds are broken, add onion, peanuts and grated coconut into the pan. Keep stirring until the grated coconut turns brown. Add the bean leaves and ginger bits into the pan. Mix with salt, if you need, cover it and cook, low flame, in the steam from the leaves. Shut the pan. Ready in 6 minutes

It's a dry preparation. We call it side dish. If you have fresh curry leaves, chuck it in during the last two minutes of cooking.