The agency's Food Safety and Inspection Service said the recall involves 2-ounce individual packages labeled "Broiled Beef Patty (Microwave)" produced on Dec. 18 and distributed on Dec. 19 to schools in the Jersey City, N.J., area.

The products were delivered in cases bearing a lot code of "07352" and product number "2801." Each case label also bears the establishment number "EST. 5370" inside the Department of Agriculture mark of inspection.

The problem was discovered through routine FSIS testing, the agency said in a release. FSIS said it has received no reports of illnesses associated with consumption of this product.