Roast beef is a dish of beef which is roasted in an oven. Essentially prepared as a main meal, the leftovers can be and are often served within sandwiches and sometimes are used to make hash. In the United Kingdom, United States, Canada, Ireland, New Zealand and Australia, roast beef is one of the meats traditionally served at Sunday dinner, although it is also often served as a cold cut in delicatessen stores, usually in sandwiches. A traditional side dish to roast beef is Yorkshire pudding.