I've been on a Greek yogurt kick lately. I love traditional tzatziki with cucumber but wanted to try something a little different. The Swiss chard delivers a slightly different texture (almost like spinach dip) and some added health benefits.
In a bowl, muddle the first 6 ingredients together into a paste. Stir in the Greek yogurt and salt, and season with pepper, to taste. Serve with warm pita rounds or crackers.