1. Place bulgur wheat in a large bowl. Add water and one-third zest and juice; stir. Cover tightly with plastic wrap, and let stand 30 minutes or until water is absorbed. Pour into a wire-mesh strainer; drain, pressing out any excess water.
2. Combine remaining zest and juice, green onions, and next 4 ingredients in a large bowl. Add bulgur, and stir. Season with salt and pepper. Chill at least 1 hour.