Wash sweet potatoes under running water and dry them completely.
Pierce each sweet potato several times with a fork to allow steam to escape during cooking.
Place sweet potatoes on a baking tray and bake at 400°F for 40–50 minutes until a fork easily enters the center.
Prepare toppings by measuring yogurt, cinnamon, nuts, seeds, and sweetener before assembling.
Cut an opening along the top of each cooked sweet potato and gently fluff the inside with a fork.
Fill the warm sweet potatoes with toppings and serve immediately.