Bison Ground, Beef Ground - 10%, Iceburg Lettuce, Tomatoes Fresh, Cucumber, Cheddar Cheese (Pasteurized Milk, Cheese Cultures, Salt, Enzymes, Powdered Cellulose [Added to Prevent Caking], Potassium Sorbate, Natamycin [Preservatives]), Sweet Onions, Greek Yogurt (Pasteurized Grade A Cow's and Goat's Milk, Skim Milk, Cream, Active Bacterial Cultures [Bifidobacterium Lactis, L. Acidophilus]), Light Mayonnaise, Ketchup, Worcestershire Sauce, White Onion, Shallots - Peeled, Pickle Relish, Vinegar, White Sugar, Garlic Powder, Onion Powder, Smoked Paprika, Kosher Salt, Black Pepper Contains: Milk, Eggs, Fish (Anchovies)