Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
Scrub sweet potatoes and pierce each several times with a fork.
Place potatoes on the baking sheet and roast for 45 minutes, or until fork-tender.
While potatoes roast, heat olive oil in a large skillet over medium-high heat.
Add diced onion and sauté for 5 minutes until translucent.
Add ground turkey and cook, breaking it up with a spatula, until no longer pink.
Stir in garlic, chili powder, cumin, paprika, salt, and pepper; cook for 1 minute until fragrant.
Add black beans, corn, and chicken broth; reduce heat to low and simmer for 5 minutes.
Slice roasted sweet potatoes open lengthwise and gently mash the interior with a fork.
Spoon the turkey taco mixture into the center of each potato.
Garnish with shredded cheese, cilantro, and a squeeze of lime juice before serving.