1. Heat 2 tablespoons olive oil over medium heat in large skillet. Cook and stir chicken until tender. Remove chicken; set aside.
2. Add 2 tablespoons olive oil to skillet; cook and stir onion and bell peppers until tender.
3. Return chicken to pan; add garlic and ground red pepper. Cook for 3 minutes, stirring constantly.
4. Add tomatoes; simmer for 10 minutes.
5. While chicken mixture is simmering, cook pasta according to package directions; do not overcook. Drain and toss with remaining 1 tablespoon olive oil in large bowl. Serve with sauce.