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Gut-Busting Fast Food Chain from ‘Shark Tank’ Opens First Seattle Location

There are mozzarella stick-filled sandwiches and deep-fried cheesecake bites

A sandwich stuffed with chicken tenders and fries, next to a Fat Shack cup, with the Fat Shack logo lit up on a brick wall in the background.
Fat Shack’s sandwiches don’t skimp on fried food.
Courtesy of Fat Shack

Health-conscious diners may want to avert their gaze. Fat Shack — the growing fast food franchise recently featured on the ABC show “Shark Tank” — has now opened its first Seattle location, called Fat Shack Underground, in Pioneer Square at 88 Yesler Way. On the menu are proudly decadent late-night snacks, including sandwiches stuffed with mozzarella sticks, jalapeno poppers, chicken fingers, fries, and anything one’s drunken heart desires. The dessert menu consists primarily of deep-fried treats like cheesecake bites and Twinkies.

Started in 2010 by a College of New Jersey grad, Fat Shack began as a small pop up on the East Coast, then established permanent outposts in Colorado and Texas. After its co-founders appeared on “Shark Tank” this past spring, one of the show’s judges, billionaire mogul Mark Cuban, agreed to back them with a six-figure deal. This is the 15th location for the franchise, and the second in Washington, including one in Bellingham.

Since the Pioneer Square space is subterranean, most of the decor drives home that theme, including historic pictures of Seattle, sports memorabilia, and local artwork. There is also beer and cider on tap from local Washington and Oregon breweries. The restaurant is open from 11 a.m.-1 a.m. Sun-Wed, open until 3 a.m. on Thursdays, and until 4 a.m. on Fridays and Saturdays.

Fat Shack

88 Yesler Way, Seattle , WA 98104

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