"Lisa the Vegetarian" is the fifth episode of the seventh season of the American animated television series The Simpsons. It originally aired on Fox in the United States on October 15, 1995. In the episode, Lisa decides to stop eating meat after bonding with a lamb at a petting zoo. Her schoolmates and family members ridicule her for her beliefs, but with the help of Apu as well as Paul and Linda McCartney, she commits to vegetarianism.

Directed by Mark Kirkland, "Lisa the Vegetarian" is the first full-length episode David S. Cohen wrote for The Simpsons. David Mirkin, the showrunner at the time, supported the episode in part because he had just become a vegetarian himself. Former Beatle Paul McCartney and his wife Linda guest-star in the episode; their condition for appearing was that Lisa would remain a vegetarian for the rest of the series. The episode makes several references to McCartney's musical career, and his song "Maybe I'm Amazed" plays during the closing credits.

In its original broadcast, "Lisa the Vegetarian" was watched by 14.6 million viewers and finished 47th in the ratings for the week of October 9–15, 1995, with a 9.0 Nielsen rating. It was the fourth-highest-rated show on the Fox network that week.

The episode received widespread acclaim from television critics and it has won two awards, an Environmental Media Award and a Genesis Award, for highlighting environmental and animal issues, respectively. It also ranks as one of the most important episodes in the show's history, helping usher in a wave of permanent character changes in the years to come, from the divorce of Milhouse's parents in "A Milhouse Divided", to Apu becoming a husband and father. It also helped inspire another permanent character change in Lisa, with her conversion to Buddhism in the similarly themed "She of Little Faith".

Plot The Simpson family visits a fairy tale–themed amusement park. At the petting zoo, Lisa is enchanted by a cute lamb. That night, Marge serves lamb chops for dinner. Troubled by the connection between the dish and its living counterpart, Lisa decides to become a vegetarian. Bart and Homer razz her to no end for her new food choices. Reaction at school is no better: when Lisa objects to dissecting a worm in class and requests a vegetarian alternative to the cafeteria food, Principal Skinner labels her an "agitator". After her second-grade class is forced to watch a Meat Council propaganda film starring Troy McClure that criticizes a vegetarian eating style, Lisa's classmates tease and ignore her.

Jealous of Ned Flanders' barbecue, Homer hosts his own, complete with roast pig. Lisa makes gazpacho as an alternative to meat, only to have the partygoers laugh in her face. After Homer inadvertently flips a burger into her room that lands on her face, an enraged Lisa stops the guests from eating the roast by using a riding mower to drive away with the pig in tow. Homer and Bart chase her, but she pushes the pig off a slope. It rolls into a river and is shot into the air by a dam spillway's suction.

At home, Homer is furious at his daughter for ruining his barbecue; Lisa rebukes him for serving a meat-based dish. At breakfast the next day, Lisa runs away after Homer's choice of words causes Lisa to reach her breaking point, calling Homer a "prehistoric carnivore" after she is punished by him. Lisa eventually succumbs to the pressure to eat meat and bites into a hot dog from the roller grill at the Kwik-E-Mart. However, Apu, an avid vegan, reveals that she has eaten a tofu dog, and leads Lisa through a secret passageway to the Kwik-E-Mart roof, where they meet Paul and Linda McCartney. Being vegetarians, the McCartneys explain that they are old friends of Apu from Paul's days in India. Apu then asks her what happened at home that made her run away. After a brief confession, he helps Lisa realize her intolerance towards others' views. Lisa recommits herself to vegetarianism, but she also realizes that she should not force her animal rights views onto others. On her way home, Lisa reunites with Homer, who is frantically searching for her, and apologizes to her, admitting that he and Bart went too far in picking on her for wanting to be a vegetarian. Lisa apologizes, also admitting she has no right to wreck his party. Homer forgives her and offers her a "veggie-back" ride home. During the end credits, the roasted pig is seen still flying through the air.

Production

Writing

"Lisa the Vegetarian" was the first full-length episode David X. Cohen wrote for The Simpsons.Cohen, David (2005). Commentary for "Lisa the Vegetarian", in The Simpsons: The Complete Seventh Season [DVD]. 20th Century Fox. His most prominent work for the show to that point had been the "Nightmare Cafeteria" segment in the season six episode "Treehouse of Horror V". The idea for "Lisa the Vegetarian" came to him while he was working on another script for the show. Cohen could not concentrate on his task because he was waiting for lunch, and on the back of the script he scribbled, "Lisa becomes a vegetarian?" Cohen showed the note to writer Brent Forrester, who liked the idea. Showrunner David Mirkin then approved the story when Cohen pitched it to him. Mirkin had just become a vegetarian himself, and later noted that many of Lisa's experiences in the episode were based on his own.

Writer Bill Oakley suggested the episode's barbecue scenes. Cohen's first draft contained a more philosophical argument between Lisa and Homer about eating meat, but Oakley told Cohen that the story needed something more specific to serve as the basis of Homer and Lisa's dispute. George Meyer, a writer known among the staff for his "bizarre physical jokes", contributed the idea of the barbecue pig getting caught in the spillway and flying into the air. Cohen credits writer John Swartzwelder for inspiring the scene in which Homer finds it impossible to believe that bacon, ham, and pork chops could possibly come from the same animal. According to Cohen, it was based on a real statement made by Swartzwelder, who was going on and on about how amazing the pig is for the variety of cuts of meat that come from it.Cohen, David X. (2005). Commentary for "Treehouse of Horror VI", in The Simpsons: The Complete Seventh Season [DVD]. 20th Century Fox.

Voice acting

At the time the episode was being written, Paul McCartney was the only living member of the Beatles who had never appeared on The Simpsons. John Lennon was murdered before the show was created, but Ringo Starr and George Harrison had guest-starred in 1991 ("Brush with Greatness") and 1993 ("Homer's Barbershop Quartet"), respectively. The staff wanted to bring McCartney onto the show, and Mirkin thought "Lisa the Vegetarian" would be an attractive story, since McCartney is a vegetarian himself. McCartney agreed to appear, but requested that Lisa remain a vegetarian for the rest of the series rather than revert to meat-eating in the next episode. The staff promised that she would remain a vegetarian, resulting in one of the few permanent character changes made in the show (though Lisa would be seen eating bacon in the season twenty-seventh episode "Fland Canyon" in a flashback that Homer explicitly mentions as having taken place before the events of this episode).Groening, Matt (2005). Commentary for "Lisa the Vegetarian", in The Simpsons: The Complete Seventh Season [DVD]. 20th Century Fox. McCartney's wife Linda was also recruited to appear in the episode. She told Entertainment Weekly that the episode was a chance for her and her husband "to spread the vegetarian word to a wider audience". Paul and Linda were both long-time fans of The Simpsons.

Mirkin later said that recording with the McCartneys was one of the most "amazing" experiences of his life. He flew to London and met the couple at Paul McCartney's recording studio, where the McCartneys spent an hour recording their parts. The Simpsons creator Matt Groening was supposed to go with Mirkin to London but missed his plane. He later commented that having all three surviving members of the Beatles on The Simpsons "was a dream come true for all of us".

On April 17, 1998, Linda McCartney died of breast cancer, aged 56. The Simpsons' season nine episode "Trash of the Titans", which aired on April 26, was dedicated to her memory. Executive producer Mike Scully said, "It just seemed like the right thing to do. Everyone here was surprised and saddened by her death."

Directing and animating The episode was directed by Mark Kirkland, who was intrigued by the story because he had not seen many television episodes about vegetarianism. The designs for Paul and Linda McCartney are unusual for The Simpsons in that the characters have brown and blue irises, respectively. Most The Simpsons characters simply have black spots in the centers of their eyes.

In one scene of the episode, Homer sprays two bottles of lighter fluid onto his grill, causing viewers to anticipate an explosion when Homer throws a match on it. When he does release the match, however, the grill barely ignites. A similar scene appears in an older episode of The Simpsons, "Treehouse of Horror", although in that episode, Homer uses a single bottle of lighter fluid and causes an explosion. Mirkin enjoyed the joke enough to reuse parts of it in "Lisa the Vegetarian", adding new twists to further enhance the comedic effect. The old sketches from "Treehouse of Horror" were used to help the animators animate the scene.Kirkland, Mark (2005). Commentary for "Lisa the Vegetarian", in The Simpsons: The Complete Seventh Season [DVD]. 20th Century Fox.

Cultural references The episode features several references to the Beatles and McCartney's solo career. Upon hearing that Lisa ran away from home, McCartney asks "What? She's leaving home?", a reference to the Beatles song "She's Leaving Home". Linda says that she and Paul like to "hang out in Apu's garden in the shade", a reference to "Octopus's Garden". Apu claims that during the Maharishi days, he was considered the fifth Beatle. McCartney tells Lisa that playing his 1970 song "Maybe I'm Amazed" backwards will reveal "a recipe for a really rippin' lentil soup". A modified version of the song plays in the final scene, then over the closing credits of the episode; when played backwards, McCartney can be heard reciting the recipe in the song. Mirkin had McCartney record the recipe, which was later added in reverse over the original song. McCartney thought it was "very funny" that the staff wanted to "send up the whole cult thing" of backmasking on the Beatles' songs. "A secret lentil soup recipe seemed a nice parody of that", he said. One of the backwards snippets says, "Oh, and by the way, I'm alive", a reference to the "Paul is dead" urban legend. Linda mentions her brand of vegetarian cuisine. Apu's pro-vegetarian T-shirt says "Don't have a cow, man!", a reference to Bart Simpson's catchphrase.

Lisa's experience of seeing a lamb and then being served lamb soon afterward is reminiscent of the McCartneys' own conversions to vegetarianism. Paul and Linda McCartney's decision to go meat-free came about in 1975. They watched lambs playing outside their farm window while sat eating lamb chops.

When Lisa, Apu, and the McCartneys gather on the Kwik-E-Mart roof, Apu tells Lisa: "I learned long ago to tolerate others rather than forcing my beliefs on them. You know, you can influence people without badgering them always. It's like Paul's song, 'Live and Let Live'." Paul corrects Apu and says the song's title is actually "Live and Let Die". The McCartneys later ask Lisa if she would like to hear a song, and Apu sings part of "Sgt. Pepper's Lonely Hearts Club Band", to which the McCartneys snap along, and Lisa backs away slowly while cringing to Apu's off-key rendition.

Reception