100% BEEF PATTY-Ingredients: 100% Pure USDA Inspected Beef; No Fillers, No Extenders.Prepared with Grill Seasoning (Salt, Black Pepper)., REGULAR BUN-Ingredients: Enriched Flour (Bleached Wheat Flour, Malted Barley Flour, Niacin, Reduced Iron, Thiamin Mononitrate, Riboflavin, Folic Acid), Water, High FructoseCorn Syrup and/or Sugar, Yeast, Soybean Oil and/or Canola Oil, Contains 2% or Less: Salt, Wheat Gluten, Calcium Sulfate, Calcium Carbonate, Ammonium Sulfate,Ammonium Chloride, Dough Conditioners (May Contain One or More of: Sodium Stearoyl Lactylate, DATEM, Ascorbic Acid, Azodicarbonamide, Mono andDiglycerides, Ethoxylated Monoglycerides, Monocalcium Phosphate, Enzymes, Guar Gum, Calcium Peroxide), Sorbic Acid (Preservative), Calcium Propionate and/orSodium Propionate (Preservatives), Soy Lecithin.CONTAINS: WHEAT, SOY LECITHIN., PASTEURIZED PROCESS AMERICAN CHEESE-Ingredients: Milk, Cream, Water, Cheese Culture, Sodium Citrate, Contains 2% or Less of: Salt, Citric Acid, Sodium Phosphate, Sorbic Acid (Preservative), LacticAcid, Acetic Acid, Enzymes, Sodium Pyrophosphate, Natural Flavor (Dairy Source), Color Added, Soy Lecithin (Added for Slice Separation).CONTAINS: MILK AND SOY LECITHIN., KETCHUP-Ingredients: Tomato Concentrate from Red Ripe Tomatoes, Distilled Vinegar, High Fructose Corn Syrup, Corn Syrup, Water, Salt, Natural Flavors (Plant Source)., MUSTARD-Ingredients: Distilled Vinegar, Water, Mustard Seed, Salt, Turmeric, Paprika, Spice Extractive., PICKLE SLICE-Ingredients: ICES-Ingredients: Cucumbers, Water, Distilled Vinegar, Salt, Calcium Chloride, Alum, Potassium Sorbate (Preservative), Natural Flavors (Plant Source), Polysorbate 80,Extractives of Turmeric (Color)., ONIONS Source : http://nutrition.mcdonalds.com/getnutrition/ingredientslist.pdf