Place potatoes in a large saucepan and cover with water. Bring to a boil. Reduce heat; cover and cook for 15-20 minutes or until tender.
Meanwhile, place beans in a saucepan and cover with water. Bring to a boil. Cook, uncovered, for 8-10 minutes or until crisp-tender; drain. Drain and slice potatoes.
In a large bowl, combine the potatoes, beans and bacon. In a jar with a tight-fitting lid, combine the dressing ingredients; shake well. Pour over potato mixture and toss to coat. Serve at room temperature or cover and refrigerate for 2-3 hours.