01 - Bring a large pot of salted water to a boil. Add green beans and blanch for 2 to 3 minutes until bright green and just tender. Drain and immediately submerge in ice water to halt cooking. Drain again and pat dry.
02 - Heat olive oil in a large skillet over medium heat. Add minced garlic and sauté for 30 to 45 seconds until fragrant, avoiding browning.
03 - Add the blanched green beans to the skillet. Season with kosher salt and black pepper. Toss and cook for 2 to 3 minutes until heated through and evenly coated with oil and garlic.
04 - Remove skillet from heat. Stir in lemon zest and freshly squeezed lemon juice, tossing to combine evenly.
05 - Transfer to a serving dish. Garnish with chopped fresh parsley if desired. Serve immediately.