Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Peel and cube the sweet potato into 1/2-inch pieces, then toss with olive oil, sea salt, and black pepper.
Spread the sweet potatoes in a single layer and roast for 20-25 minutes until the edges are golden and tender.
While roasting, heat a large non-stick skillet over medium-high heat and add the ground turkey, diced onion, and bell pepper.
Cook until the turkey is browned and vegetables are softened, breaking the meat into small crumbles with a spatula.
Stir in the minced garlic, tomato puree, smoked paprika, cumin, chili powder, and water.
Reduce heat to low and simmer for 10 minutes until the sauce has thickened and flavors are well combined.
Spoon the smoky turkey chili over the roasted sweet potato cubes and serve immediately.