The Canadian division of Safeway is recalling some frozen beef burgers due to potential E. coli O157:H7 contamination. The recalled products are the “Gourmet Meat Shoppe Big & Juicy Burger” and the “Gourmet Meat Shoppe Prime Rib Burger.” Both products have a best-by date of August 14. They were distributed in Alberta, British Columbia, Manitoba, Northwest Territories, Ontario, and Saskatchewan. The recall has resulted from an ongoing investigation by the Canadian Food Inspection Agency at the producer’s meat plant.