Robert Rosenthal earned a professional culinary degree while president of a top global advertising agency. He has also performed stand-up in New York's hottest comedy clubs, hosted his own food programs on TV and radio and published articles in Cookie, Adweek, and Advertising Age, which calls him "undoubtedly one of the industry's most colorful characters."

Hungry for a PB&J straight from a can? How about a whole chicken? Robert Rosenthal asks if you can still get a square meal from a round can—plus view the most unappetizing products.