Prep: Prepare pasta according to package directions; drain.
Meanwhile, sprinkle chicken with lemon-pepper seasoning; set aside. Cut lemon in half; cut one half into 6 wedges. Set aside.
Combine: In large skillet, heat oil over high heat. Add chicken and lemon wedges; reserving other half of lemon. Sauté until chicken is browned (about 3-5 minutes).
Add broccoli, peppers and garlic. Sauté until vegetables are tender and chicken is cooked through (about 3-5 minutes). Add wine and squeeze other half of lemon into pan; sauté until reduced by half.