In the processor or liquidiser, finely chop half a bunch spring onions, a small handful mint leaves, a small handful parsley and 4 ripe tomatoes, (skinned and seeded) In a bowl, mix everything with 120g couscous, the juice of a lemon, 4 tbsp extra virgin olive oil and 100ml boiling water. Cover the bowl and leave to stand for 1 hour to plump up. Stir well and serve