Got this from Allrecipes.com.
3 large sweet potatoes, peeled and cut into 1/2" to 1" cubes
2 T. olive oil
2 pinches dried oregano
2 pinches salt
2 pinches ground black pepper
1. Preheat oven to 350 degrees.
2. Place sweet potatoes, olive oil, oregano, salt, and pepper in a large bowl.
3. Toss well to coat sweet potatoes.
4. Pour sweet potatoes into a glass 9x13 baking dish.
5. Bake 60 minutes or until soft.