In the "Modern Family" episode titled "Lily Goes to a Vietnamese Restaurant for the First Time," Lily, a character in the show, experiences a new culture by dining at a Vietnamese restaurant. This marks her first time trying Vietnamese cuisine, and she is accompanied by her adoptive parents, Cam and Mitchell. The episode explores Lily's reactions and the challenges she faces while trying new foods and understanding cultural differences. It provides a light-hearted and humorous take on a child's introduction to a different cuisine and demonstrates the show's commitment to showcasing diverse experiences.