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,
Tomato sauce of which is similar but of a thicker consistency. Tomato purée and tomato paste have FDA standards of identity (since 1939) for percentage of tomato solids, and generally do not contain seasonings other than salt; tomato sauce is nonstandardized. The second use of the term "tomato sauce" in the U.S. is for a cooked sauce of tomatoes, usually containing olive oil and garlic. This type of tomato sauce is generally served with pasta, and sometimes with meat. Less commonly, it is served with chicken or beef alone. One popular variety of tomato sauce is "marinara sauce, "an Italian-American term for