Orzo means “barley” in Italian, but it also is the name of the pasta that resembles grains of rice. In this dish, we’ve paired orzo with chicken and greens, turning it into a light but complete one-pot meal. Feel free to substitute an equal amount of baby spinach for the arugula. And if you prefer tangy, creamy fresh goat cheese (chèvre) to briny feta, it’s also a delicious way to top the pasta.