Beefsteak tomato

A beef tomato (British English) or beefsteak tomato (American English) is any of the largest varieties of cultivated tomatoes, some weighing 450 grams (1 lb) or more. Most are pink or red with numerous small seed compartments (locules) distributed throughout the fruit, sometimes displaying pronounced ribbing similar to ancient pre-Columbian tomato cultivars. While popular among home growers for sandwich making and other applications requiring a large tomato to be eaten raw, beefsteaks are not grown commercially as often as other types, since they are not considered as suitable for mechanization as smaller slicing tomatoes.

Common varieties include:

...
Wikipedia