Green Bean and Potato Salad is a classic dish that is perfect for summer picnics and barbecues. The salad is made with fresh green beans, boiled potatoes, red onion, and a simple vinaigrette dressing. The dish is easy to make and can be prepared in advance, making it a great option for potlucks. To add more flavor to the dish, you can add bacon, hard-boiled eggs, or fresh herbs.