 The introduction of the Specialty Sandwich line was one of the first attempts by a major fast food chain to target a specific demographic , in this case adults aged between 18 and 34 years , members of which were presumably willing to spend more on a higher quality product . Included in the new line was the Original Chicken Sandwich , a ham and cheese sandwich , a roast beef sandwich , a new fish sandwich called the Long Fish Sandwich , and a new burger called the Sirloin Steak Sandwich . The ham and cheese sandwich replaced an earlier version ham and cheese sandwich called the Yumbo that was served hot and was the size of a hamburger . In 1981 the chain tested a veal parmigiana sandwich in limited areas of the United States and took it national in 1982 . It was also sold in New England as part of limited time offering ( LTO ) in 1988 . 
