Tomato

Tomatoes were plants that were widely used for food. Tomatoes originated on Earth, although they have been known to be cultivated in otherworldly varieties. While tomatoes were technically classified as fruit, for the culinary purposes they were vegetable matter.

Tomatoes could be made into a juice, which was very popular. Tomato juice was one of several beverages available on the drink dispensers on the Enterprise NX-01. 

A holographic simulation of the Café des Artistes of 2342 had menus that listed a croissant available with cheese sauce and fresh tomatoes. 

Stewed tomatoes and dehydrated eggs were a component of a Starfleet ration pack, "ration pack 5". 

The acronym BLT stands for Bacon, Lettuce, Tomato. It was also B'Elanna Torres' nickname (as well as her initials) while she was at Starfleet Academy.