Remove the garlic cloves from the tray and squish them with the blade of your knife. Put the garlic in a large bowl with the remaining oil, ginger, mustard, a pinch of sugar and one-third of the lime juice. Whisk, then tip in the warm lentils, stir and season to taste. Coarsely grate the carrots, shred the cabbage and roughly chop the coriander. Squeeze over the remaining lime juice and season to taste.