01 - Bring a large pot of salted water to a rolling boil over high heat.
02 - Add the trimmed green beans to the boiling water and cook for 3–4 minutes until bright green and crisp-tender.
03 - Drain the beans thoroughly and immediately transfer them to a bowl of ice water to stop the cooking process. Drain well once cooled.
04 - Heat olive oil in a large skillet over medium heat. Add the minced garlic and sauté for approximately 1 minute until fragrant, taking care not to brown it.
05 - Add the drained green beans to the skillet. Toss to coat in the garlic oil and sauté for 2–3 minutes until heated through.
06 - Stir in the lemon zest, lemon juice, salt, and black pepper. Toss well to ensure the beans are evenly coated.
07 - Transfer to a serving platter. Garnish with chopped fresh parsley and lemon wedges if desired. Serve warm.