Fish oil is the fat or oil that's extracted from fish tissue. It usually comes from oily fish such as herring, tuna, anchovies and mackerel. Yet sometimes it's produced from the livers of other fish, as is the case with cod liver oil.
A piquillo pepper is a type of small red chili pepper with a shape similar to a triangle that is grown in Spain. It has a flavor that is slightly sweet and spicy, but it is not a truly hot pepper.
Aquila is a constellation in the northern sky. Its name is Latin for 'eagle' and it represents the bird who carried Zeus/Jupiter's thunderbolts in Greco-Roman mythology. Aquila lies astride the celestial equator. The alpha star, Altair, is a vertex of the Summer Triangle asterism.