Macaroni and cheese—also called mac and cheese or mac n cheese in US and Canadian English, macaroni cheese in the United Kingdom—is a dish of English origin, consisting of cooked macaroni pasta and a cheese sauce, most commonly cheddar. It can also incorporate other ingredients, such as breadcrumbs, meat and vegetables. Traditional macaroni and cheese is a casserole baked in the oven; however, it may be prepared in a sauce pan on top of the stove or using a packaged mix.