What does the Orzo Salmon Primavera contain as a grain component?

The Orzo Salmon Primavera features orzo as its grain component. Orzo is a form of pasta that is shaped like grains of rice, making it a unique ingredient that combines the characteristics of pasta and grains in terms of texture and cooking methods. This choice aligns well with the dish's overall composition, as primavera typically refers to a style of preparation that incorporates fresh vegetables, which can complement the chewy and slightly nutty flavor of orzo.

In this context, rice is a different grain altogether and does not align with the defining characteristics of this specific dish. While pasta might seem like a close alternative since orzo is a type of pasta, it does not specifically denote orzo. Quinoa, on the other hand, is a completely different grain known for its protein content and texture, which does not match what is featured in Orzo Salmon Primavera. Thus, orzo stands out as the correct answer, serving as the integral grain component of the dish.