For extra flavor, roast the green beans with a drizzle of olive oil, salt, and pepper before assembling the salad.To make this salad ahead of time, prepare the vinaigrette and toss the green beans with it. Store in the refrigerator for up to 2 days.Add a handful of chopped fresh herbs like mint or parsley for a burst of freshness.This salad is perfect for a potluck or picnic.f you don't have pomegranate arils, you can substitute with dried cranberries or chopped dried apricots.