Cajun is the style of cooking named for the French-speaking Acadian or "Cajun" immigrants deported by the British from Acadia in Canada to the Acadiana region of Louisiana, USA. It is what could be called a rustic cuisine. Usually locally available ingredients predominate, and preparation is simple. An authentic Cajun meal is usually a three-pot affair, with one pot dedicated to the main dish, one dedicated to steamed rice, skillet cornbread, or some other grain dish, and the third containing whatever vegetable is plentiful or available.
The aromatic vegetables bell pepper, onion, and celery are called by some chefs the holy trinity of Creole and Cajun cuisines. Finely diced and combined in cooking, the method is similar to the use of the mire poix in traditional French cuisine, which blends finely diced onion, celery and carrot. Characteristic seasonings include parsley, bay leaf, green onions, and dried cayenne pepper.