Pretty healthy ranch

This is the recipe we use for ranch. I like using olive oil mayo (cause it's both good and olive oil is a nice, healthy fat). I really like greek yogurt in this more than regular, as it's more savory and tart, which I think is nice in a ranch.

2 cups plain greek yogurt
1/4 cup mayo
1/4 cup finely chopped green onion (I have also used garlic chives to great result; ramps are fun too)
2 tablespoons chopped fresh parsley or 1 teaspoon dried, crushed
1 teaspoon salt
1 teaspoon fresh ground pepper
1/4 cup grated parmessan

Combine, and allow to sit for at least a half an hour to let flavors combine. It'll keep for a few days, but because it's made with fresh veggies it won't last forever, unlike the crap in a bottle. But it tastes SO GOOD.