The Big Shack at Shake Shack

Go big with Shake Shack’s ultimate burger upgrade. The Big Shack stacks two quarter-pound Angus beef patties with American cheese, Secret Sauce, lettuce, thick-cut pickles, onions and Roma tomatoes between three buttered, toasted potato buns — packing 56 grams of protein.

Available for a limited time at Shake Shack.