Shake Shack · Fast Food
Tall and built on one Martin's potato roll, this burger stacks a seared Angus beef cheeseburger patty under a fried 'Shroom Burger. The mushroom patty is a breaded portobello cap filled with melted muenster and cheddar, so you get beef, cheese, and earthy mushroom in one bite. Lettuce, tomato, and ShackSauce finish the build. Compared with the rest of Shake Shack's lineup, this one combines two signature patties instead of doubling up on beef. It's the brand's heaviest standard burger, and the layered format changes how it eats, with a softer beef patty under the crisp, fried mushroom shell.
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