1. Heat 2 teaspoons oil in a large nonstick skillet over medium-high heat. Add bell pepper and next 5 ingredients (bell pepper through black pepper); sauté 10 minutes or until vegetables are tender. Remove mixture from skillet.
2. Heat 1 teaspoon oil over medium-high heat. Add chicken; cook, stirring constantly, 5 minutes or until chicken is done. Return vegetable mixture to skillet. Stir in juice; cook until chicken mixture is thoroughly heated. Heat tortillas according to package directions.
3. Place 1 cup chicken mixture down center of each tortilla; sprinkle each portion with 1 tablespoon shredded cheese, and roll up.