Leek
From Tardis Wiki, the free Doctor Who reference
A leek was a vegetable which was supplied by Windy Ridge Veg Ltd. (TV: Children of Earth: Day Two [+]Loading...["Children of Earth: Day Two (TV story)"])
It was once suggested that the reason the Fifth Doctor wore a stick of celery on his coat was because nobody wants a leek on a spaceship. (PROSE: Knock! Knock! Who's There? [+]Loading...["Knock! Knock! Who's There? (novel)"])
The Seventh Doctor and Ace ate potato and leek soup. (PROSE: Cat's Cradle: Witch Mark [+]Loading...["Cat's Cradle: Witch Mark (novel)"])