Green bean and potato salad is a hearty and satisfying dish that is perfect for a summer picnic or barbecue. The green beans and potatoes are boiled until they are tender, then tossed with a simple vinaigrette made with olive oil, red wine vinegar, and Dijon mustard. The salad is then topped with sliced hard-boiled eggs and fresh herbs. It is a delicious and filling dish that is sure to please everyone.