Source: www.helium.com
USA, September 2010, (by Suzanne Rose): Restaurants have much to benefit from offering vegetarian meals. Why? Because vegetarians have friends. And family. The logic is compelling: Let’s say there is a big family of ten people that includes only one vegetarian, a person the other nine hold dear. If the restaurant has nothing for him or her, the entire party might avoid the place.
Sometimes even offering just a single item (a good one) can make a big difference.
Even non-vegetarians might choose vegetarian menu items. Vegetarian meals are often a healthier option that can be appealing to health-conscious individuals or someone on a diet (a veggie burger is much healthier than a regular burger, for example).