1Spray 10-inch skillet with cooking spray. Heat over medium-high heat. Add chicken; stir-fry 3 to 4 minutes or until no longer pink in center. Add zucchini, carrot, onion, basil, oregano and pepper; stir-fry 2 to 3 minutes longer or until vegetables are crisp-tender. Stir in tomato.
2Cut pita breads in half to form pockets; fill with chicken mixture. Sprinkle with cheese.