A recall due of hundreds of frozen waffles and pancakes sold in many U.S. grocery stores over listeria concerns has expanded.

TreeHouse Foods has added several brands of pancakes and waffles to the list of breakfast products recalled over possible listeria contamination.

This image provided by TreeHouse Foods, Inc., shows the packaging of two styles of waffles, among hundreds of brands of frozen waffles, that are part of a voluntary recall because the products could be contaminated with dangerous listeria bacteria,

TreeHouse Foods issued a voluntary recall last week for its frozen waffle products that are sold at many retailers in the U.S. and Canada.

An Illinois company is recalling frozen waffles sold by more than a dozen major U.S. retailers under multiple labels because of possible listeria contamination. Though no illnesses have been reported,

TreeHouse Foods has expanded its recall of frozen waffles and other breakfast products over concerns of listeria contamination.