The Filet-O-Fish Jingle From 2009 That Still Lives In Customers' Heads

Of all the McDonald's menu items, the Filet-O-Fish might just have the most lore — and a memorable jingle to match.

The Highly Unusual Topping That The McDonald's CEO Once Smeared On A Filet-O-Fish

According to the CEO of McDonald's, tartar sauce isn't the only condiment that can be slathered on top of a Filet-O-Fish.
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Super-Size Your McDonald's Filet-O-Fish With This Ordering Tip

A McDonald's Filet-o-Fish stacked atop its blue box - Robson90/Shutterstock The Filet-O-Fish was the first addition to the original McDonald's menu and possibly the first fast food fish sandwich ever.