Cos\u00ec, based in Boston, Massachusetts, is a fast-casual restaurant chain that is known for its homemade flatbread. The name comes from the opera Cos\u00ec fan tutte, which was a favorite of the original owner. As of December 29, 2019 the company had 66 locations in New York, Washington D.C., Virginia, Pennsylvania, Massachusetts, Connecticut, Wisconsin, Illinois, Indiana, Ohio, as well as Costa Rica. On December 30, 2019, Cosi abruptly closed a number of locations in several states. The chain filed for Chapter 11 bankruptcy in February 2020.
Così