Filet-O-Fish

The Filet-O-Fish is a fish sandwich sold by the international fast food restaurant chain McDonald's. It was created in 1962 by Lou Groen, a McDonald's franchise owner in a predominantly Catholic neighborhood of Monfort Heights in Cincinnati, Ohio, in response to declining hamburger sales on Fridays due to the practice of abstaining from meat on that day. While the fish composition of the sandwich has changed throughout the years to cater to taste preferences and address supply limitations, the framework of its ingredients has remained constant; a fried breaded fish fillet, a steamed bun, tartar sauce, and pasteurized American cheese.

==History== The sandwich was invented in 1962 by businessman Lou Groen, a McDonald's franchise owner in Cincinnati. His store at 5425 West North Bend Road was in a predominantly Catholic neighborhood, which led to falling hamburger sales on Fridays resulting from the practice of abstaining from meat on Fridays. The product was named by Cye Landy of Cye Landy Advertising Agency, which was the advertising firm for that particular McDonald's franchise.