Bean

Beans were a plant-based food found on Earth.
 * When in 1999 Amelia Pond cooked baked beans for the newly-regenerated Doctor, but he spat them out in disgust, declaring, "Beans are evil. Bad, bad beans." (DW: The Eleventh Hour)
 * Whilst eating a plate of baked beans, Clyde Langer asked Mr Smith to tell him about the Slitheen-Blathereen family. When Mr Smith recalled the Blathereen "farting themselves to death", Clyde jokingly asked if he would suffer the same fate, Mr Smith assured him that it was scientifically impossible for a Human to be filled with methane on a scale that causes death in the manner of the Blathereen and it was safe to continue eating. (WC: The Alien Files)
 * Jack Harkness asked Rhys Williams to leave the hub to get some fake shopping he wanted so as he and Ianto Jones could have sex. He told him he'd go later as the beans were done to which Ianto quipped "bloody beans". (TW: Children of Earth: Day Two)
 * Luke Smith told Sarah Jane, Clyde and Rani that his friends at the University of Oxford lived off baked beans and curry, Clyde remarked that it must be like living with the Slitheen. (K9TV: The Vault of Secrets)
 * When K9 Mark 2 was disabled by Dauntless Prison's defenses. He fell in a dustbin, some of the rubbish contained in it was baked beans. (K9TV: Liberation)
 * When Starkey was on the run from The Department he cooked a tin of Baked Beans on a fire made from twigs, K9 decided to help using his Photon Beam causing the baked beans to burst out. (K9TV: The Korven)

Beans within a sandwich or on toast

 * The Doctor once told Rose Tyler to have her "lovely beans on toast". (DW: Rose)
 * The Doctor said this again after regenerating for the ninth time. (DW: The Christmas Invasion)
 * As K9 and Starkey went "walkies" while monitored by Alistair Gryffen, he reminisced going to a Cafe ten years ago which served "the best baked bean sandwiches in London" K9 reacted to this stating "Prognosis, gas."(K9TV: The Bounty Hunter)