Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Peel and dice the sweet potato into small half-inch cubes.
In a bowl, toss the sweet potato cubes with olive oil, half of the chili powder, half of the cumin, and a pinch of salt and pepper.
Spread the potatoes on the baking sheet and roast for 20-25 minutes until tender and crispy on the edges.
While potatoes roast, heat a non-stick skillet over medium-high heat and add the ground turkey.
Season the turkey with the remaining chili powder, cumin, garlic powder, salt, and pepper, breaking it up with a spatula until fully browned.
Stir the rinsed black beans into the skillet with the turkey and heat through for 2 minutes.
Place the shredded romaine lettuce in a large bowl as the base.
Top the lettuce with the roasted sweet potatoes and the turkey and bean mixture.
Finish the bowl with a dollop of Greek yogurt and the salsa before serving.