Place green beans in a large pot of boiling water. Cook for 3-5 minutes until beans are bright green and tender-crisp. Drain and rinse under cold water to stop the cooking process.
In a large skillet, melt butter over medium heat. Add minced garlic and sauté for about 1 minute until fragrant. Add the blanched green beans, salt, and pepper. Cook, stirring occasionally, for about 5 minutes until the beans are heated through and coated in garlic butter.
Transfer the garlic green beans to a serving dish. Serve warm as a delicious side to any main course.