Heat 3-quart nonstick saucepan over medium heat. Add chicken; sprinkle with garlic-pepper blend. Cook and stir 3 to 5 minutes or until browned.
Add soup and orzo; mix well. Heat to boiling. Reduce heat to medium-low; simmer uncovered 10 to 15 minutes or until chicken is no longer pink in center and orzo is tender.
Stir in zucchini. Cook 2 to 3 minutes, stirring occasionally. Sprinkle each serving with 1 tablespoon cheese.