This is a recipe adapted from the newsletter from my CSA, Spiral Path.
Parsley (dried or fresh)
Onion - diced
Radishes - diced
If I had to put proportions to this ... 2/3 cup yogurt, 1/3 cup sour cream, 2-3 t parsley, 1/2 cup minced onion, 1 cup minced radishes, and salt & pepper to taste.
The original recipe calls for 8 oz cream cheese instead of the yogurt and sour cream. I didn't have cream cheese. I'll try it with that next time.