I have worked as a cook for a couple years now and watching the videos about "Mindless Eating" ring absolutely true in real life. Brian Wansink is a person with a PhD and multiple scholarly articles and a published book about the topic does not need more backing evidence, but I will provide it regardless. Working in kitchens has taught me a few things about food, not just how to cook it or what certain things go with well, but more about how to get people to eat the food. Most of what I have learned is more about atmosphere of the restaurant, and presentation of the food. Most people do not take into account that how a plate looks, will make them enjoy the food more, but it does. For example this is a picture of the Grilled Salmon entree at the place I work at:
Another factor that Brian Wansink brought up is the size of the plate. That from a restaurant stand point is really important. If we serve a dish on two different size plates, a customer will either feel like they got ripped off or they got a great value. If the plate is too big then the person will think that there is not as much food which effects not only how pretty the plate is but also how much they eat and if they are getting a good value.