Bolognese sauce tagliatelle made with eggs and northern Italy’s soft wheat flour. Acceptable alternatives to fresh tagliatelle include other broad flat pasta shapes, such as pappardelle or fettuccine, and tube shapes, such as rigatoni and penne. While the main complaint of traditionalists is against the use of spaghetti rather than fresh tagliatelle for the pasta, native Bolognese Piero Valdiserra has argued that "spaghetti could be considered traditional in Bologna", even though tagliatelle is the "most suitable" pasta. "Ragù alla bolognese" along with "béchamel" is also used by many Italian chefs to prepare traditional baked lasagna in Bolognese style. Gruppo Virtuale Cuochi Italiani
Italian cuisine early 20th centuries, influencing the cuisine of the country (which was otherwise dominated by meat and dairy products that the narrow Ligurian hinterland would have not allowed). Pasta dishes based on the use of "guanciale" (unsmoked bacon prepared with pig's jowl or cheeks) are often found in Lazio, such as pasta "alla carbonara" and pasta "all'amatriciana". Another pasta dish of the region is "arrabbiata", with spicy tomato sauce. The regional cuisine widely use offal, resulting in dishes like the entrail-based "rigatoni" with "pajata" sauce and "coda alla vaccinara". Iconic of Lazio is cheese made from ewes' milk (Pecorino Romano), "porchetta"