Orzo (Italian for barley) is a small grain-shaped pasta also known as risoni. It is an ideal substitute for rice in soups and pilafs not only because of its shape, but also because it cooks in about half the time. It is also a wonderful addition to any salad.
Orzo is quick and easy to prepare. As any other pasta, simply bring water (or chicken/vegetable stock) to a boil in a pan, cook according to package directions and drain before use.
Try substituting orzo for white or brown rice in Crab Gumbo (link below).