Burger 21, a new fast casual concept founded by the owners of The Melting Pot Restaurants Inc., announced today that it has signed a franchise deal to open a restaurant in Charlotte, N.C., and a multi-unit deal to develop four new restaurants throughout Fairfax County, Va., and Montgomery County, Md. These latest agreements are part of the brand’s aggressive growth strategy to bring its crafted burgers and hand-dipped shakes to more cities across the country. To date, Burger 21 has five units open and 10 franchised restaurants in development along the East Coast. Read the Fast Casual story here.