White Castle® is America's hamburger restaurant. We've been a family-owned business since 1921, and the same family values that guided us then drive our commitment to our customers today. Our original sliders are available in our restaurants and local retail stores across the country to satisfy every craver's appetite. Each White Castle slider is steam-grilled over savory onions to create the hot, tasty flavor you crave. Our burgers are made from 100% beef, with zero additives or fillers. After just a few seconds in the microwave or a few minutes on the stove top, America's favorite slider is ready to eat. Meat is 100% Beef