ARBY’S ROAST BEEF SANDWICH is a sandwich that is best served with a side of fries. The sandwich consists of sliced roast beef, melted Swiss cheese, and sauerkraut. and for an extra taste, you should add Arby’s horsey Sauce to your order. ARBY’S is a fast food restaurant that specializes in roast beef sandwiches. it was first introduced in 1965 by ARBY’S Restaurant Group in … [Read more...] about Arby’s roast beef sandwich