In the video, a person is preparing a dish that includes black beans, corn, and tomatoes. The person is seen adding corn to the mixture, which already contains black beans and tomatoes. The dish appears to be a type of salad or a side dish. The colors in the dish are vibrant, with the yellow corn contrasting against the red tomatoes and the black beans. The person is using a spoon to mix the ingredients together, ensuring that they are well combined. The video does not show any other objects or people, and the focus is solely on the preparation of the dish.