It’s Flat Out Delicious! Fatburger Introduces All-New Flatburger

February 05, 2026 // Franchising.com // LOS ANGELES - Fatburger is sizzling with the addition of a new burger to its menu line-up, the Flatburger. Available now through June 30 at participating locations, the latest burger creation further underscores the brand’s commitment to delivering flat-out delicious, high-quality offerings to its fans.

The Flatburger is loaded with flavor with two 100% fresh lean beef patties smashed on the grill, topped with American cheese, grilled onions, pickles, and a creamy sauce for a rich, tangy kick. The chain’s all-new smash style burger follows Fatburger’s other successful burger introductions, including being the first major fast casual chain to launch a plant-based burger in 2018, in addition to the Skinnyburger, with the burger serving as the bun, in 2014.

“At Fatburger, we aim to deliver a fresh experience that resonates with our guests,” said Jenn Johnston, Chief Marketing Officer at FAT Brands. “While our classics remain beloved, we are always exploring new twists on our burgers—and the Flatburger does exactly that—pressed-to-order with a caramelized, crispy edge and unbeatable flavor.”

Ever since the first Fatburger opened in Los Angeles over 70 years ago, the chain has been known for its delicious, grilled-to-perfection and cooked to order burgers. Founder Lovie Yancey believed that a big burger with everything on it is a meal in itself. At Fatburger, “everything” is not just the usual lettuce, tomato, onion, mayo, mustard, pickles and relish. Burgers can be customized with toppings including bacon, eggs, chili and onion rings. In addition to its famous burgers, the Fatburger menu also includes Fat and Skinny Fries, sweet potato fries, scratch-made onion rings, turkeyburgers, hand-breaded crispy chicken sandwiches, and hand-scooped milkshakes made from 100% real ice cream.

SOURCE FAT Brands

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