Ocado British Whole Shoulder of Lamb, Bone In. Ready for roasting, cook slowly on a low temperature for a tender and deliciously flavoured joint. Each 1kg of raw lamb will provide around 5 servings of 120g lamb roasted, then trimmed of fat. Wondering what sides to serve up with your lamb? Search 'Ocado veg' for lots of fresh, frozen and organic inspiration. Ocado works closely with our producers and processor to ensure the highest of quality. All Ocado lamb is sourced from Farm Assured farms in the UK, reared to high standards of animal welfare, husbandry and with good environmental practices. The colour of the meat will gradually return on opening and there may be a slight odour which will quickly disappear. This is normal and does not affect the eating quality.