Pesto with roasted potatoes and sirloin steak. Vegan variations of pesto can include mixes of fresh basil, nuts such as walnut or pine nut, olive oil, and the addition of miso paste and nutritional yeast to provide additional flavor enhancement to the dish. For reasons of expense or availability, walnuts, pecans, cashews or even peanuts are sometimes substituted for the traditional pine nuts. Also, while the nuts are traditionally used as is, some recipes call for prior toasting. While not preferable, other culinary nuts may be used due to the taste disturbances that some people may experience after consuming pine nuts
Bolognese sauce types of minced or finely chopped beef, often alongside small amounts of fatty pork. White wine, milk, and a small amount of tomato concentrate or tomatoes are added, and the dish is then gently simmered at length to produce a thick sauce. The earliest documented recipe of an Italian meat-based sauce ("ragù") served with pasta comes from late 18th century Imola, near Bologna. A recipe for a meat sauce for pasta that is specifically described as being "bolognese" appeared in Pellegrino Artusi's cookbook of 1891. The "ragù alla bolognese" that is now traditionally associated with tagliatelle and lasagne is somewhat