Cosi is a restaurant chain that is described as a fast casual dining experience. They are based in Boston, Massachusetts. It is known for its creation of homemade flatbread. The name of the restaurant chain comes from the famous opera Cosi fan tutte, which is one of the original owner's favorite plays. It was based on a cafe that was found in Paris and was founded in the year 1996. Today, there are well over 100 locations that can be found not only in the United States but also in the United Arab Emirates and Costa Rica as well. They offer soups, sandwiches, salads, bowls and flatbread pizzas.