Oscar Mayer Natural Slow Roasted Roast Beef Lunch Meat is quality natural roast beef made with our ingredients. With no artificial ingredients, no nitrates or nitrites added and no artificial flavors or colors, Oscar Mayer Natural Slow Roasted Roast Beef Deli Meat provides a delicious lunch option for kids and adults. Our sliced beef lunch meat is fully cooked and has a rich, hearty flavor. Use roast beef slices to make a classic sandwich, or heat it in the oven to make a toasty French dip. Oscar Mayer Natural Deli Meat also makes a great addition to cheese and crackers or salads. Keep the 7-ounce tray refrigerated.