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,
Italian cuisine with use of tomato are spread in all Italy. Italians like their ingredients fresh and subtly seasoned and spiced. In Northern Italy though there are many kinds of stuffed pasta, polenta and risotto are equally popular if not more so. Ligurian ingredients include several types of fish and seafood dishes. Basil (found in pesto), nuts, and olive oil are very common. In Emilia-Romagna, common ingredients include ham (prosciutto), sausage (cotechino), different sorts of salami, truffles, grana, Parmigiano-Reggiano, and tomatoes (Bolognese sauce or ragù). Traditional Central Italian cuisine uses ingredients such as tomatoes, all kinds of meat, fish, and pecorino cheese.