Roy Rogers used to be a large chain of fast food restaurants owned by the Marriot Corp. established in Falls Church, VA in 1968. It is now a very small chain in the Midatlantic and Northeast. They obtained a loyal following for their excellent roast beef sandwiches, burgers, and fried chicken. They were bought out by Hardees in the early 1990s which was an utter disaster for Hardees as no Roy Rogers regulars liked Hardees food. I grew up liking Roy's Roast Beef sandwiches but it's impossible to find a copycat recipe online. From admissions of Roy's, a former employee and America's Test Kitchen, here is tried authentic recipe for their roast beef sandwiches. They use USDA choice Steamship Round (the entire Round of Beef). This recipe results in a deliciously tender and juicy roast beef sandwich exactly how Roy's makes it. To improve flavor beyond Roy's try searing the beef in a saute pan prior to slow roasting. Roy's acknowledges this will enhance flavor but is cost prohibitive for them. A single 4 lb. roast will yield 20 sandwiches.