Onion

Onions are a mentioned-only consumable.

Characteristics
Onions are described as being multilayered vegetable, eaten by members of the New California Republic Army stationed at Camp McCarran. Onions are also used used idiomatically to refer to those who know what they're talking about. They are also mentioned in a recipe for brahmin noodle soup.

Appearances
Onions are mentioned in Fallout, Fallout 2, Fallout: New Vegas, and Fallout 76.