1. Bring a large pot of water to a boil. Add the potatoes; cook about 20 minutes or until almost tender. Add the beans; cook about 3 minutes more or until tender. Drain well.
2. In a large skillet, heat the oil over medium heat. Add the garlic; cook and stir for 30 seconds. Add the potatoes, beans, onions, onion powder, and salt and pepper to taste. Cook about 2 minutes more or until heated through, tossing to coat. Add the chives after turning off the stove and toss once more to allow the seasonings to coat.