Check your freezer for these recalled waffles ASAP—affected products include generic brands from several supermarkets, plus protein waffles like Kodiak Cakes.

Certain brands may be contaminated with listeria, a type of bacteria that can lead to serious illness in vulnerable groups.

Check your fridge if you buy frozen waffles. Certain brands of the fluffy breakfast favorite have been linked to a listeria contamination.  TreeHouse Foods has issued a voluntary recall on Friday for its frozen waffle products that are sold at many retailers across the country and in Canada.