choice of smashed patty, MB special sauce, American cheese, signature double onion, dill pickle, and crisp lettuce **NEW BUNS** Beef/Chicken sandwiches: new potato bun (contains dairy)! All Impossible sandwiches: new DAIRY-FREE brioche patty choice: PREMIUM N.Y. BEEF: (family farms in Seneca Falls, NY; no added hormones or antibiotics) or IMPOSSIBLE VEGGIE