I steam the red potatoes whole and unpeeled in a steamer until they are done. It takes about 45 to 55 minutes. I prefer the texture of the potatoes, they are firm and dry and don't fall apart. I usually steam my potatoes one day, chill them, and make the salad the next day. Boiled potatoes are not recommended. The salad is easy, and you can make it quickly.
Or if you are running out of time, you can cut them up like this and steam them. If you do that, let them cool before you add the ingredients to the potatoes.
Time saver tip: When I steam potatoes in my tier steamer, I steam a lot and use them during the week in my dishes. While the potatoes are steaming, I also steam 6 eggs. The steamer makes great "boiled" eggs. I may also steam some vegetables for another meal.
In a medium size bowl, add the chilled potatoes and the fine chopped green onions with the white part and the dill. Mix the Fage Greek Yogurt and the salt and pepper in a small bowl. Pour the mixture over the potatoes, onions and dill. Gently mix well. You can eat the salad right away, but we prefer it chilled. I also like this salad with crumbled bacon on top, but that is just me! :)