Sweet Potato Fries with Miso Dip

2 medium sweet potatoes, peeled, cut into ½-inch-wide slices, and then cut in half again. Yams should be in the shape of half moons.
2 tablespoons olive oil
Salt and pepper to taste

Dip
1/2 cup plain yogurt
2 tbsp miso paste

Preheat oven to 375°F. Spray large baking sheet with vegetable oil spray. Toss sweet potatoes with oil, salt and pepper. Spread sweet potatoes in single layer on prepared baking sheet and bake until tender and golden brown, turning occasionally about 25 minutes.

While sweet potatoes are cooking, combine yogurt and miso paste in a small bowl. Serve fries with dip on the side.