Preheat your oven to 400°F (200°C). Wash and dry the sweet potatoes, then pierce them several times with a fork.
Place sweet potatoes on a baking sheet and bake for 45-50 minutes, or until tender when pierced with a fork.
While the potatoes bake, heat olive oil in a large skillet over medium heat. Add diced onion and cook until translucent, about 3-4 minutes.
Add minced garlic and cook for another 30 seconds until fragrant.
Add ground turkey to the skillet, breaking it up with a spatula. Season with Italian seasoning, paprika, salt, and pepper. Cook until no longer pink, about 7-8 minutes.
Stir in the chopped spinach and cook until wilted, approximately 2-3 minutes.
Once potatoes are done, let them cool slightly. Cut them in half lengthwise and gently fluff the inside with a fork.
Top each potato half with the turkey-spinach mixture and sprinkle with cheese if desired. Return to the oven for 5 minutes if you'd like the cheese melted.