Diced Tomatoes are usually packed with tomato juice, citric acid, and calcium chloride. Chopped is generally less refined and can be more asymmetrical/rustic. Diced tomatoes are generally tomato chunks packed in tomato juice. They can be an excellent timesaver. Crushed tomatoes are a mixture of diced tomatoes and tomato puree or paste. Stewed tomatoes are cooked and then canned, usually with other seasonings and sugar added. Tomatoes are rich in Vitamins A, C and are cholesterol-free. Unico delivers tomatoes that consistently provide the right balance of sweetness & acidity with that bright fresh tomato flavor. Unico Canned tomato products have countless applications from savory pasta & pizza sauces to soups and casseroles.