Boston’s 12 Most Iconic Dishes | Eater Boston

"Roast beef sandwiches are practically ubiquitous in Massachusetts, particularly in the North Shore region, and there is no roast beef spot more well-known than Kelly’s Roast Beef, which opened in 1951 on Revere Beach. (These days, there are several other locations — including Saugus, Danvers, and Medford.) It’s possible this stalwart invented the roast beef sandwich in the form that it appears around the state, and mega-chain Arby’s acknowledges drawing inspiration from Kelly’s. True North Shore roast beef fans tend to go for the three-way sandwich, which comes topped with James River barbecue sauce, no-frills Land O’Lakes white American cheese, and mayonnaise." - Erika Adams