Wash the sweet potatoes and poke them several times with a fork. Set them on a baking sheet and bake for 50-60 minutes, or until they are cooked. Once they are done, remove them from the oven, but do not turn it off yet.
While they are baking, cook the ground beef, onion, and pepper together in a skillet, breaking up the meat as it cooks. When it is cooked, stir in the salt, pepper, cumin, and smoked paprika.
Carefully cut a slit in each potato and scoop most of the insides into a bowl, leaving about a half inch layer of potato on the inside of the skin.
Add the meat mixture to the bowl with the sweet potato and stir it together to combine.
Spoon the mixture back into the potatoes and bake for 10 more minutes.
After they have finished baking, top them with the shredded cheese.