The recall is for the Farm Rich brand Mini Pizza Slices, Philly Cheese Steaks, Mozzarella Bites and Mini Quesadillas. Market Day Mozzarella Bites are also being recalled.
Each product package contains the establishment number "EST. 27232" or "P-27233" inside the USDA mark of inspection.
The affected products were produced between Nov. 12, 2012 and Nov. 19, 2012 and sold at stores nationwide. Officials are concerned that some people may still have the products in their freezers.
The company says it's working with the U.S. Department of Agriculture to identify the source of the contamination.