Brussels sprout

Brussels sprouts were a food item. (PROSE: Every Day, Loose Wire, etc.) According to one account, sprouts could gain sentience. (TV: Sprout Boy meets a Galaxy of Stars)

History
According to various individuals, "nobody ever liked a sprout". Sprout Boy was a sprout who was told this several times, before eventually finding kindness at a Christmas party with the Twelfth Doctor. (TV: Sprout Boy meets a Galaxy of Stars)

Barbara Wright made Brussels sprouts and gravy when the First Doctor and his family had Christmas with George Smythe and his family. (PROSE: Every Day)

Lucie Miller did not like sprouts. (AUDIO: Relative Dimensions)

Alice Wu was relieved at having a sprout-free Christmas dinner after they were dropped from her mother's supermarket order. (PROSE: Loose Wire)