Whisk 1 Tbs. white balsamic vinegar with 2 Tbs. low-fat sour cream, 2 Tbs. mayo, 1 Tbs. dill, 1 Tbs. chives, and ¼ tsp. kosher salt. Spoon over 8 cups lettuce, 1 sliced pear, and ¼ cup hazelnuts. Serves 4.