Ocado Diced Beef. Our diced beef comes from selected lean prime beef cuts, which are then carefully diced for the most succulent, tender and richly flavoured beef. Ocado works closely with our producers and processors to ensure the highest of quality. All Ocado beef is sourced from Farm Assured farms in the UK and Ireland, reared to high standards of animal welfare, husbandry and with good environmental practices. Ocado beef only comes from prime beef animals.