Preheat oven to 425
Toss diced potatoes with olive oil
Roast potatoes on flat sheet pan (I line with foil) for about 30 minutes
In medium bowl whisk until combined well: yogurt, hot sauce, cumin, vinegar, fresh herbs, and salt & pepper.
Gently combine all ingredients in a large bowl
Sprinkle with a pinch of fresh herbs
Serve immediately or refrigerate covered