In the video, a person is preparing a taco by adding lettuce to a tortilla that already has shredded chicken and chopped green onions on it. The person places the lettuce on top of the chicken and onions, covering them completely. The tortilla is on a blue plate, and the lettuce is bright green in color. The chicken and onions are yellow and white respectively. The person's hand is visible as they place the lettuce on the taco.