Step 1

Preheat the grill to medium-high heat.

Step 2

Place the sweet potatoes on a large rimmed sheet pan. Drizzle the potatoes with the olive oil and sprinkle all over with 1 teaspoon of the salt, toss to coat completely. Arrange the sweet potatoes on the grill, cut side down. Grill, turning every 2-3 minutes until fork tender, about 15 minutes.

Step 3

Meanwhile, make the dressing. In a blender or food processor, combine the yogurt, green onions, dill, garlic, basil, lemon juice, and remaining ½ teaspoon salt. Blend until smooth, about 1-3 minutes.

Step 4

Transfer the sweet potatoes to a serving platter. Drizzle with the yogurt dressing and top with fresh dill. Serve family style.