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
Tomato sauce sauce is used in the same way as American ketchup. "Tomato sauce" may also be used in its generic English meaning of a sauce primarily based on tomatoes, as in a menu item "Gnocchi in a tomato sauce" where it would be understood that the sauce would be of the kind used in Italian cooking for pastas. In the U.S., "tomato sauce" refers to two distinct sauces. One is a tomato concentrate with salt and minimal herbs, used in cooking. This product is considered incomplete and not normally used as is. Related ingredients are tomato purée and tomato paste, each