Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Peel the sweet potato and cut it into uniform 1/2-inch cubes to ensure even roasting.
Place the sweet potato cubes on the baking sheet and toss with 0.5 tsp of olive oil, half of the sea salt, and half of the black pepper.
Roast the sweet potatoes for 20 to 25 minutes, tossing halfway through, until they are tender and the edges are golden brown.
While the potatoes roast, heat the remaining 0.5 tsp of olive oil in a large non-stick skillet over medium-high heat.
Add the ground turkey to the skillet and cook, breaking it into small crumbles with a wooden spoon, until it is browned and no longer pink.
Stir in the chili powder, cumin, garlic powder, and the remaining sea salt and black pepper to evenly coat the turkey.
Add the rinsed black beans to the skillet and cook for an additional 2 to 3 minutes until they are heated through.
Assemble the bowl by layering the roasted sweet potatoes and the turkey-bean mixture together.
Finish the bowl with a dollop of Greek yogurt, a sprinkle of fresh cilantro, and a generous squeeze of lime juice.