Preheat your oven to 425 degrees f.
Line a large sheet pan with parchment paper.
Toss your diced sweet potatoes with the oil on your prepared sheet pan.
Roast in your preheated oven 25-30 minutes, or just until nicely browned and crisp.
In the meantime, drizzle the fresh lime juice and zest over your diced avocado, gently stir to coat well and set aside.
In a large serving bowl whisk until combined well: yogurt, hot sauce, cumin, vinegar, fresh herbs, and sea salt & pepper.
Allow your sweet potatoes to cool before adding to your salad.
Gently combine all ingredients into the large serving bowl where you created the dressing. Toss lightly just until everything is nicely coated.
Sprinkle with additional fresh herbs if desired.
Serve immediately or refrigerate covered up to 24 hours