1. Bring a large pot of salted water to a boil.
2. Add potatoes; cook about 15 minutes, or until almost tender.
3. Add beans; cook about 3 minutes, or until tender; drain well.
4. In large skillet, heat oil over medium heat.
5. Add garlic; cook, stirring, for 30 seconds.
6. Add potatoes, beans, and salt and pepper to taste.
7. Cook about 2 minutes, or until heated through, tossing to coat.
8. Add basil and toss once more before serving.