10 oz. Angus Beef Burger. - Add Cheese: $1.00 / Each -- Choice of: Bleu, Cheddar, American, Mozzarella, Fontina, and Brie. - Add Toppings: $1.00 / Each -- Choice of: Caramelized Onions, Lettuce, Tomatoes, Raw Onions, and Sautéed Mushrooms.