Cook green beans in boiling salted water to cover 5 to 7 minutes or until crisp-tender; drain. Plunge beans into a bowl of ice water to stop the cooking process; drain.
Heat oil in a large skillet over medium heat; add garlic, and saut 1 minute or until golden. Stir in green beans, lemon rind, salt, and pepper; saut 4 minutes or until beans are thoroughly heated.