QUARTER POUND 100% BEEF PATTY-Ingredients: 100% Pure USDA Inspected Beef; No Fillers, No Extenders.Prepared with Grill Seasoning (Salt, Black Pepper).*, BAKERY STYLE BUN-Ingredients: Enriched Flour (Bleached Wheat Flour, Malted Barley Flour, Niacin, Reduced Iron, Thiamin Mononitrate, Riboflavin, Folic Acid), Water, Whole WheatFlour, High Fructose Corn Syrup, Honey, Wheat Gluten, Contains 2% or Less of: Yeast, Soybean Oil, Maltodextrin (Dietary Fiber), Salt, Calcium Sulfate, DoughConditioners (Wheat Flour, DATEM, Ascorbic Acid, Azodicarbonamide, Sodium Stearoyl Lactylate, Mono and Diglycerides, Enzymes, Calcium Peroxide), AmmoniumSulfate, Natural Flavor (Botanical Source), Calcium Propionate (Preservative), Vitamin D3, Rolled Wheat (Topping).CONTAINS: WHEAT., TOMATO SLICE-Ingredients: ICE-Chicken & Fish, THICK CUT APPLEWOOD SMOKED BACON-Ingredients: Pork Bellies Cured with Water, Salt, Sugar, Natural Smoke Flavor (Plant Source), Sodium Phosphate, Sodium Erythorbate, Sodium Nitrite., PASTEURIZED PROCESS WHITE CHEDDAR CHEESE, HABANERO RANCH SAUCE-Ingredients: Water, Soybean Oil, Corn Syrup Solids, Distilled Vinegar, Buttermilk Powder, Egg Yolks, Maltodextrin, Dried Cayenne Red Pepper Sauce (AgedCayenne Red Peppers, Vinegar, Salt, Garlic), Sugar, Corn Starch, Modified Food Starch, Contains 1% or Less: Salt, Spice and Spice Extractives, Natural Flavor(Dairy and Animal Sources), Lemon Juice Concentrate, Lactic Acid, Habanero Pepper, Red Bell Pepper Powder, Sodium Benzoate and Potassium Sorbate(Preservatives), Xanthan Gum, Propylene Glycol Alginate, Apple Cider Vinegar.CONTAINS: MILK, EGG-Ingredients: USDA Grade A Eggs.CONTAINS: EGG.Prepared with Liquid Margarine: Liquid Soybean Oil and Hydrogenated Cottonseed and Soybean Oils, Water, Partially Hydrogenated Soybean Oil, Salt, Soy Lecithin,Mono and Diglycerides, Sodium Benzoate and Potassium Sorbate (Preservatives), Artificial Flavor, Citric Acid, Vitamin A Palmitate, Beta Carotene (Color).CONTAINS: SOY LECITHIN.., LEAF LETTUCE Source : http://nutrition.mcdonalds.com/getnutrition/ingredientslist.pdf