Canned tomatoes are tomatoes that have been harvested, cooked, and sealed in a can to preserve their freshness and flavor. They are available in various forms, including whole, diced, crushed, and pureed. Canned tomatoes are a convenient option for cooking, as they can be used in a variety of dishes such as soups, sauces, and stews. The canning process helps to retain the nutritional value of the tomatoes, making them a healthy addition to meals. They are often used in recipes that call for fresh tomatoes, especially when they are out of season. Canned tomatoes are a staple in many kitchens and are widely available in grocery stores.