In a medium pot, cover green beans with cold water and bring to a boil. Lower the heat and simmer for 5-10 minutes, until they reach your preferred level of doneness. Drain and set aside.
Melt butter over medium heat in a large skillet. Add the garlic and toast until golden, watching carefully to ensure it doesn't burn.
Add the cooked green beans to the pan, sprinkle with salt and pepper, and toss to coat (and reheat if they've cooled).
Serve and enjoy!