Roast beef sandwich
The roast beef sandwich is a sandwich that is made out of sliced roast beef or sometimes beef loaf, frequently using cold roast beef (either the leftovers from a homemade dinner or deli meat). This style of sandwich often comes on a hamburger bun and may be topped with barbecue sauce and/or melted American cheese, while other popular ingredients include lettuce, tomatoes, and mustard, although it would not be uncommon to find cheese, horseradish, fresh or powdered chili pepper, or red onion.