Jamie Oliver demonstrates a one-pot roast dinner, cutting down on washing up but never on flavour, before rustling up his store cupboard version of a speedy carbonara that can use up whatever vegetables are to hand. He also shares two ways to use pre-packed ingredients to make crowd-pleasing starters or sides, and reveals a treat from two connoisseurs of Middle Eastern food that proves how everyday spices can transform ingredients into mouth-watering meals.