A store-cupboard saviour for weeknights and ends of the month that you can adapt at will

This is my favourite store-cupboard dinner when faced with the pre-shop complaints that “there’s nothing in the fridge”. The cherry tomatoes provide a welcome fresh note, but otherwise it’s a happy cupboard raid. An old Nigel Slater recipe first put me on to the idea of using yoghurt to finish a pasta dish, and it works brilliantly here to balance the harissa. Excellent for a work-from-home lunch, too.