This green bean and tomato pasta salad is a healthy and delicious dish that is perfect for a summer picnic or barbecue. The green beans are blanched until they are tender but still crisp, and then tossed with cooked pasta, cherry tomatoes, and a simple vinaigrette made from olive oil, red wine vinegar, Dijon mustard, salt, and pepper. This salad is easy to make and is sure to be a crowd-pleaser!