The first McDonald's Filet-O-Fish was created by a Cincinnati franchisee to serve Catholic customers during Lent.

Today, the McDonald's Filet-O-Fish is a beloved part of the menu, but it's undergone major changes, including a switch away ...

A McDonald's Filet-o-Fish stacked atop its blue box - Robson90/Shutterstock The Filet-O-Fish was the first addition to the ...

A Filet-O-Fish sits on its box - Robson90/Shutterstock For a chain famous for its Big Macs, McNuggets, and ultra-delicious fries, the Filet-O-Fish is a bit of an outlier since it's the only ...

*In 1959, entrepreneur Lou Groen opened the first McDonald’s in the Cincinnati, Ohio area. After working a variety of jobs and eventually becoming president of the Cincinnati Restaurant Group, Groen ...

Even though McDonald's is known worldwide as a hamburger chain, the non-beef options on the menu have become just as famous. Chicken McNuggets, the Egg McMuffin, and the Filet-O-Fish are all iconic ...

The Filet-O-Fish sandwich at McDonald's often finds itself in the spotlight. From President Donald Trump professing his long-standing love for the sandwich (he'd like them to add a little bit more ...

The thing that makes McDonald's Filet-O-Fish special is that it's always been about ingenuity. When franchisee Lou Groen first presented the idea to corporate in 1961, it was to cater to locals in his ...

The Filet-O-Fish faced a little competition before it became McDonald's official meatless mainstay. The Hula Burger gets new life in Cincinnati.