"The traditional fruit and nut salad just got a serious makeover...."
sour cream
mayonnaise
white wine vinegar
Dijon mustard
pure honey
Kosher salt and freshly ground black pepper
(5-ounce) package romaine hearts, leaves separated
small head red leaf lettuce, leaves torn
stalks celery, thinly sliced
apples, thinly sliced
seedless purple grapes, halved
toasted walnuts, chopped
pomegranate seeds