Spanish omelette signed. Upon their release, these prisoners brought part of the culture of Alentejo to Spain, including many recipes, which featured a potato egg pie that evolved into the modern version of "tortilla". Spanish omelettes can range from authentic and carefully made seasoned preparations of raw potatoes of a variety carefully selected for best results, eggs, optional onions and good olive oil and nothing else, to nontraditional preparations with many additional ingredients. Some of the many additions to the base ingredients include green peppers, chorizo, courgette, aubergine, mushrooms, and diced ham. The "tortilla paisana" includes red pepper and peas. The tortilla
Vegetable oil of some pet foods. AAFCO defines vegetable oil, in this context, as the product of vegetable origin obtained by extracting the oil from seeds or fruits which are processed for edible purposes. Vegetable oils are also used to make biodiesel, which can be used like conventional diesel. Some vegetable oil blends are used in unmodified vehicles but straight vegetable oil, also known as pure plant oil, needs specially prepared vehicles which have a method of heating the oil to reduce its viscosity. The use of vegetable oils as alternative energy is growing and the availability of biodiesel around the world