In "The Lightning Thief" by Rick Riordan, a humorous exchange highlights a character's strong vegetarian beliefs. One character dismissively states their aversion to meat, claiming a vegetarian lifestyle. This sets up a witty contrast as another character points out that the vegetarian's diet includes cheese enchiladas, which contain cheese, and aluminum cans, humorously asserting that those are not entirely vegetable-based options.

This dialogue illustrates the playful banter between characters, revealing their personalities and attitudes toward food choices. The lighthearted tone emphasizes the differences in their diets, showcasing how even simple topics like food can lead to amusing discussions and reflections on one's beliefs and habits.