Step by step
Dice all the veggies (except for the leek) and sautè them in a nonstick pan with a dash of extravirgin olive oil and a pinch of salt.
Tips
To give taste and colour to your cous cous you can add basil and hot pepper.
Trivia
In North Africa and Sicily people don't drink water while eating cous cous, in order to prevent cous cous from swall inside their stomach and make the digestion more difficult.