Lemon Marinated Swordfish With Greek Orzo Salad

¾ cup dry orzo ⅓ cup chopped seeded cucumber 2 tablespoon thinly sliced green onion 3 tablespoon olive oil 1 tablespoon lemon juice ¼ teaspoon salt ⅛ teaspoon freshly ground black pepper 1 cup shredded baby spinach leves ½ cup halved grape tomatoes ¼ cup crumbled feta cheese (1 ounce) 2 tablespoon snipped fresh oregano salt and pepper