01 - Bring a large pot of salted water to a boil. Add green beans and blanch for 2–3 minutes until bright green and crisp-tender. Drain and immediately transfer to a bowl of ice water to stop cooking. Drain again and pat dry.
02 - In a large skillet, heat olive oil over medium heat. Add sliced almonds and cook, stirring frequently, until golden and fragrant, about 2 minutes. Transfer almonds to a plate and set aside.
03 - In the same skillet, add minced garlic and sauté for 30 seconds until fragrant. Add green beans and toss to coat in the oil and garlic.
04 - Stir in lemon zest, lemon juice, salt, and pepper. Sauté for another 2–3 minutes until beans are heated through. Remove from heat, sprinkle toasted almonds over the beans, and serve immediately.