Macaroni and cheese, also known as "mac and cheese", "macaroni cheese" in British English, or "macaroni pie" in Caribbean English, is a dish consisting of cooked elbow macaroni and cheese sauce. Traditionally prepared as a casserole, macaroni and cheese is now often prepared stove-top using a packaged food mix.

The dish is essentially a noodle gratin (scalloped potatoes) with macaroni pasta in place of potatoes.

A similar traditional dish in Switzerland is called Älplermagronen (Alpine herder's macaroni), which is also available in boxed versions. Älplermagronen are made of macaroni, cream, cheese, roasted onions, and potatoes. In the Canton of Uri, the potatoes are traditionally omitted, and in some regions, bacon or ham is added.