Wash and peel sweet potatoes. Cut into 1/2-inch slices, then again into 1/2-inch strips. Toss sweet potatoes with oil in a large bowl. Sprinkle generously with salt and pepper. Spread sweet potatoes in single layer on prepared baking sheet. Bake until sweet potatoes are tender and golden brown, turning occasionally, about 30 minutes.
Transfer sweet potatoes to platter.
Mix herbs in a small bowl. Sprinkle over sweet potatoes.
VARIATIONS: You can add any favorite herb to the mix, even a little dash of Parmesan cheese is delicious.