Few things are more prevalent and more iconic in America than fast food restaurants. Whether or not we want to admit it, a quick meal of burgers, chicken nuggets, french fries and a milkshake is as American as apple pie. And because fast food restaurants are a an essential part of the culture, the signature items at these joints are as well. So we had to ask: What are the most famous fast food menu items of all time?

To determine the most famous fast food menu items of all time, we looked to Nation’s Restaurant News’ list of the top 200 restaurants by sales and pulled out the fast food chains from the top 50. Of course, regional restaurants such as In-n-Out and Shake Shack are also world-famous and have their own distinctive menu items, so we included these cult-favorite places as well. From there, we looked at which menu items are the most sold, most well-regarded and most known from the top chains. The following 40 items have defined fast food, for better or for worse, and we all know and love these dishes.