Which of the following ingredients is found in the ravioli and prawn trio?

The ravioli and prawn trio includes pasta that is traditionally made using egg. The incorporation of egg into the pasta dough enhances the texture and richness of the ravioli, making it a popular ingredient in many Italian pasta recipes. This is especially important in dishes that require a delicate balance of flavor and texture, such as the ravioli. The use of egg helps create a pliable dough that can hold fillings like prawns effectively.

Other ingredients listed, such as tree nuts, pork, and peanuts, are not standard components of ravioli made with prawn fillings. In fact, ravioli fillings can vary widely, but egg is a foundational element in the pasta itself, distinguishing it from others that may not contain eggs. This makes the presence of egg in the dish a key factor in its preparation and a correct identification in this scenario.