A rolled-up sandwich is a type of sandwich that has been tightly wrapped in a thin layer of bread or tortilla. It is usually filled with a variety of ingredients such as meats, cheeses, vegetables, and condiments. The sandwich is then rolled up and secured with toothpicks or string. This type of sandwich is popular for picnics, lunch boxes, and on-the-go meals. The term WRAP is the four letter solution to the crossword puzzle, which is an appropriate word to describe the process of making a rolled-up sandwich.