Butternut squash recall announced over possible listeria contamination The products that were recalled by Lancaster Foods were those processed between Dec. 22, 2020 and Jan. 8, 2021. Butternut squash items were recalled by Lancaster Foods LLC due to possible listeria contamination. The company issued a voluntary recall on all its processed butternut squash items. In the company's Jan. 19 announcement posted on the Food and Drug Administration's (FDA) website, the recall was made because the products have the potential to be contaminated with listeria monocytogenes. The recall covers several states which include Connecticut, Maryland, Massachusetts, New York, New Jersey, New Hampshire, North Carolina, Pennsylvania, Rhode Island, Washington, D.C., Vermont, and Virginia.