Pasta tomato sauce, garlic and herbs. In Northern Italy "white sauce" is more common. However Italian cuisine is best identified by individual regions. Pasta dishes with lighter use of tomato are found in Trentino-Alto Adige and Emilia Romagna. In Bologna, the meat-based "Bolognese sauce" incorporates a small amount of tomato concentrate and a green sauce called "pesto" originates from Genoa. In Central Italy, there are sauces such as "tomato sauce", "amatriciana", "arrabbiata" and the egg-based "carbonara". Tomato sauces are also present in Southern Italian cuisine, where they originated. In Southern Italy more complex variations include pasta paired with fresh vegetables, olives,
Pasta salad (like olive oil) to the pasta, either after it is done cooking or to add it to the pasta water. The noodles can be spread out to cool and will not stick together because of the layer of oil on their surfaces. In Australian and New Zealand cuisine, pasta salad became increasingly popular during the 1990s when commercial versions became more readily available in supermarket stores across both Australia, and New Zealand. It is made up of cooked pasta pieces (usually either shell pasta, elbow shaped pasta or Penne) covered in mayonnaise and accompanied by carrots, capsicum (bell peppers), and