Canadian brand Relish Gourmet Burgers has proven a fast-growing success north of the border. Seven Relish locations are openm with three more in works. The latest, slated for Charlottetown, Prince Edward Island, will put Relish in all four of Canada’s Atlantic provinces. Next, the chain intends to expand into the U.S, in South Portland, Maine, next spring. The company plans to open 101 stores.