As the name suggestions, this is one of the largest and firmest fruits in the tomato family. They can grow up to 6 inches (15 cm) in diameter. Native to Central and South America, they were first introduced to Europe by explorers in the 1500s. Available in red or green, their meaty texture and sweet flavor of this heirloom popular in recipes for slicing. Higher in sugar than cherry tomatoes, they have a high ratio of both water and flesh per seed. Ironically this also means that this tomato is not ideal produce for large supermarket chains. Unlike other tomatoes that are engineered for mechanized picking, beefsteaks are easily bruised.