Plural of Ratatouille of late latin pistus track pistum: crushed, crushed. This dish is known as La Mancha Ratatouille, although done in all Spain. Is pochan in olive oil, onion and peppers green and Red; then add the courgette into small cubes of half a centimeter or less. A few turns are given with wooden spoon and when it starts to be adding a can of tomato paste and a few thin slices of chorizo. In half an hour it is. There are more versions of this tasty very common dish in Spain. Not everyone poured the chorizo. Bon Appetit!