Add the sliced sweet potatoes to a bowl and drizzle with the oil. Add the brown sugar and nutmeg. Stir well to combine.
Arrange the coated sweet potato slices in rings around a 10-inch baking pan. Making three rings and then fill in the center with the slices that are left.
Bake at 350 degrees for about 30 minutes or until the sweet potatoes are cooked through and softened. If they are packed tightly in the pan they may take a little longer to cook.