Tomato sauce can stand on its own or it can also be paired with ingredients such as Italian sausage, clams, bacon cubes, tuna, meatballs or vegetables, for a more lively pasta dish. Tomato-garlic sauce is prepared using tomatoes as a main ingredient, and is used in various cuisines and dishes. In Italian cuisine, "alla pizzaiola" refers to tomato-garlic sauce, which is used on pizza, pasta and meats. Sauce tomate is one of the five mother sauces of classical French cooking, as codified by Auguste Escoffier in the early 20th century. It consists of salt belly of pork, onions, bay leaves, thyme, tomato
French cuisine contrôlée" (AOC) (regulated appellation) laws. French cuisine was made important in the 20th century by Auguste Escoffier to become the modern haute cuisine; Escoffier, however, left out much of the local culinary character to be found in the regions of France and was considered difficult to execute by home cooks. Gastro-tourism and the "Guide Michelin" helped to acquaint people with the rich bourgeois and peasant cuisine of the French countryside starting in the 20th century. Gascon cuisine has also had great influence over the cuisine in the southwest of France. Many dishes that were once regional have proliferated in variations