Is there a more quintessentially British creation than the Sunday roast ? There's truly nothing better than settling down for a heaped plate of succulent meat - or a vegan or vegetarian substitute - roast spuds, vegetables, Yorkshire puddings, gravy, and all the trimmings. One American man who has been documenting his adventures sampling traditional British fare tucked into a Sunday roast at a renowned London eatery and delivered his verdict. Kalani Smith , who boasts more than 3.3 million