Macaroni and cheese, also known as mac and cheese, macaroni cheese, or macaroni pie, is a dish that consists macaroni that is covered in cheese. It can be bought packaged. It is a common food for children in the US. It was introduced in America by Thomas Jefferson in 1803. It originated in Italy and originally was a high-class food. It is not a good choice for people trying to lose weight. It is high in fat and very cheap.