Green bean and potato salad is a hearty and flavorful side dish that can be made in just a few minutes. Simply boil baby potatoes until they are tender and slice them in half. Blanch fresh green beans in boiling water for a few minutes until they are tender but still crisp. Drain and rinse with cold water to stop the cooking process. Toss the potatoes and green beans with a simple vinaigrette made with olive oil, red wine vinegar, and Dijon mustard. Add some chopped red onion and parsley for extra flavor and color. Serve chilled.