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
Spanish omelette Other ingredients such as green or red peppers, chorizo or other sausage, tuna, shrimp or different vegetables, may also be included as well, although the result is not strictly a tortilla de patatas/papas. The Spanish government nutrition web site specifies extra virgin olive oil and includes onion, but some recipes simply state vegetable oil. The tortilla may be eaten hot or cold; it is commonly served as a "tapa" or picnic dish throughout Spain. As a tapa, it may be cut into bite-size pieces and served on cocktail sticks; a large tortilla can be cut into triangular portions ("pincho de