Potato (Fallout 4)

A potato is a consumable mentioned

Background
Research conducted and reported upon in a Prydwen terminal includes information on two species of plants, a potato and a tomato, that have hybridized into a new species called a tato. The new consumable looks like a tomato on the outside, but the inside is brown. The taste is described as "disgusting" but "will keep you from starving."

Appearances
Potatoes are mentioned in Fallout 4.