Green Bean and Potato Salad is a hearty and filling dish that is perfect for picnics or potlucks. Fresh green beans and potatoes are boiled until they are tender and then tossed with a simple vinaigrette made with olive oil and Dijon mustard. The salad is then topped with hard-boiled eggs and fresh herbs. This dish is perfect for a summer barbecue or as a side dish for roasted meats.