Cargill Meat Solutions Corporation is voluntarily recalling approximately 845,000 pounds of frozen ground beef patties produced at its Butler, Wis., location because they may be contaminated with E. coli O157:H7.

The frozen ground beef patties were produced on various dates from Aug. 9 through Aug. 17, 2007, and were distributed to retail establishments, restaurants and institutions nationwide.

Products distributed to restaurants and institutions and subject to recall include: