Macaroni salad is a salad

Salad

Salad is any of a wide variety of dishes, including vegetable salads; salads of pasta, legumes, eggs, or grains; mixed salads incorporating meat, poultry, or seafood; and fruit salads. They may include a mixture of cold and hot, often including raw vegetables or fruits.Green salads include leaf...

, served cold made with cooked elbow macaroni

Macaroni

Macaroni is a variety of moderately extended, machine-made, dry pasta made with durum wheat. Macaroni noodles do not contain eggs, and are normally cut in short, hollow shapes; however, the term refers not to the shape of the pasta, but to the kind of dough from which the noodle is made...

 pasta and usually prepared with mayonnaise

Mayonnaise

Mayonnaise, , often abbreviated as mayo, is a sauce. It is a stable emulsion of oil, egg yolk and either vinegar or lemon juice, with many options for embellishment with other herbs and spices. Lecithin in the egg yolk is the emulsifier. Mayonnaise varies in color but is often white, cream, or pale...

. Much like potato salad

Potato salad

Potato salad is a dish made from boiled potatoes, the versions of which vary throughout different regions and countries of the world. Although called a salad, it is generally considered a side dish, as it generally accompanies the main course....

 or coleslaw

Coleslaw

Coleslaw, sometimes simply called slaw in some American dialects, is a salad consisting primarily of shredded raw cabbage. It may also include shredded carrots and other ingredients such as fruits and vegetables, apples, onions, green onions, peppers and various spices.-History:The term "coleslaw"...

 in its use, it is often served as an accompaniment to barbecue

Barbecue

Barbecue or barbeque , used chiefly in the United States, Canada, the United Kingdom, New Zealand and Australia is a method and apparatus for cooking meat, poultry and occasionally fish with the heat and hot smoke of a fire, smoking wood, or hot coals of...

, fried chicken

Fried chicken

Fried chicken is a dish consisting of chicken pieces usually from broiler chickens which have been floured or battered and then pan fried, deep fried, or pressure fried. The breading adds a crisp coating or crust to the exterior...

, or other picnic

Picnic

In contemporary usage, a picnic can be defined simply as a pleasure excursion at which a meal is eaten outdoors , ideally taking place in a beautiful landscape such as a park, beside a lake or with an interesting view and possibly at a public event such as before an open air theatre performance,...

 style entree

Entrée

An entrée is a dish served before the main course, or between two principal courses of a meal.The disappearance in the early 20th century of a large communal main course such as a roast as a standard part of the meal in the English-speaking world has led to the term being used to describe the main...

s. Like any dish, national and regional variations abound but generally it is prepared with raw diced onions and celery

Celery

Apium graveolens is a plant species in the family Apiaceae commonly known as celery or celeriac , depending on whether the petioles or roots are eaten: celery refers to the former and celeriac to the latter. Apium graveolens grows to 1 m tall...

 and seasoned with salt

Edible salt

Salt, also known as table salt, or rock salt, is a mineral that is composed primarily of sodium chloride , a chemical compound belonging to the larger class of ionic salts. It is essential for animal life in small quantities, but is harmful to animals and plants in excess...

 and pepper

Black pepper

Black pepper is a flowering vine in the family Piperaceae, cultivated for its fruit, which is usually dried and used as a spice and seasoning. The fruit, known as a peppercorn when dried, is approximately in diameter, dark red when fully mature, and, like all drupes, contains a single seed...

. Canned tuna

Tuna

Tuna is a salt water fish from the family Scombridae, mostly in the genus Thunnus. Tuna are fast swimmers, and some species are capable of speeds of . Unlike most fish, which have white flesh, the muscle tissue of tuna ranges from pink to dark red. The red coloration derives from myoglobin, an...

 is also a very popular ingredient.

In Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

 it is commonly known as pasta salad

Pasta Salad

Pasta salad is a dish prepared with one or more types of pasta, usually chilled, and most often tossed in a vinegar, oil or mayonnaise-based dressing. It is typically served as an appetizer or a main course....

 and is usually made with cooked shell pasta pieces and brought from supermarket delis.

In Hawaii

Hawaii

Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...

 macaroni salad is a popular staple in plate lunch

Plate lunch

The plate lunch The plate lunch The plate lunch (Hawaiian: pā mea ai is a syncretic menu item that is a quintessential part of the cuisine of Hawaii, roughly equivalent to a Southern U.S. meat-and-threes plate. However, the inclusion of pan-Asian ingredients makes the plate lunch unique to Hawaii....

es.