Step 2
In a small bowl, whisk together the olive oil, red wine vinegar, Dijon mustard, garlic powder, oregano, basil, onion powder, salt, and pepper. In a large bowl, stir together the cooked orzo, tomatoes, olives, feta cheese, and chicken breast meat until thoroughly combined. Pour the dressing over the orzo mixture, lightly mix to coat all ingredients with dressing, and spoon into the red pepper halves. Garnish each serving with an oregano sprig.