Sendik's Beef Swiss Mushroom Burger

, Mushrooms, AusJus Concentrate ( Water, Hydrolyzed vegetable protein (corn, soy wheat), red wine vinegar, tomato paste, Worcestershire sauce( vinegar, molasses, high fructose corn syrup, anchovies, water, hydrolyzed soy and corn protein, onion, tamarind, salt, garlic, cloves, chili pepper, natural flavor, shallots), date paste, natural flavor, yeast extract, onion juice, salt, guar gum, sodium benzoate, garlic juice, sugar, corn syrup solids, spice.), | | Cooking instructions: USDA suggests that all ground beef be cooked to an internal temperature of 160 degrees.