Ham burghers - Telegraph We all know them - the indecisive souls who hover in the aisle, inspecting the use-by dates on the salads, picking up a newfangled rocket-and-crayfish bloomer with a suspicious, calculating glance. And then, as if terrified by the very profusion of luncheon options around them, they buy what they were always going to: namely, what they always have. Perhaps the one in eight Britons who eat the same lunch day in, day out are comforted by the routine, or simply know what they like and like what they know. But it is somehow reassuring to discover not just that the vast majority of us - some 71 per cent - are shunning stores for the humble packed lunch, but that the most popular option is a ham sandwich, closely followed by cheese. As the gastronomic revolution proceeds, we may even start to combine the two - but it may take a few more decades to catch on.