In the video, a person is seen preparing a sandwich. The person places slices of avocado on a piece of bread. Then, the person adds slices of red onion on top of the avocado. The person's hands are visible in the video, and they are using a knife to cut the avocado and onion. The bread is white and appears to be a whole grain variety. The avocado is green and looks ripe, while the onion is purple and appears to be fresh. The person is adding the ingredients in a specific order, first the avocado and then the onion. The video is shot from a top-down perspective, and the background is white.