Green beans were a vegetable native to Earth that were often eaten by Humans. They contained high amounts of cellulose. (VOY: "Deadlock")
In 1957, a nineteen-ounce can of green beans cost 17¢ at Johnnies Market in Carbon Creek, Pennsylvania, in the United States of America. (ENT: "Carbon Creek")
Green beans were part of a salad Sub-commander T'Pol had in June 2151 and which she was eating with fork and knife. (ENT: "The Andorian Incident")
Travis Mayweather had a dish including green beans during lunch with Matthew Ryan in the mess hall in August 2151. (ENT: "Fortunate Son")
Enterprise NX-01's Chef planned to serve green beans with grilled trout almondine and rice pilaf on August 13th, 2152. However, he fell ill, and Ensign Hoshi Sato replaced the menu item with her family's recipe for oden. (ENT: "Singularity")
When the replicators in the mess hall of Voyager had trouble replicating items with high levels of cellulose in 2372, Neelix mentioned that it was causing green beans to be replicated with a yellowish hue. (VOY: "Deadlock")