Preheat your oven to 400°F (200°C) and line a small baking sheet with parchment paper.
Peel and dice the sweet potato into 1/2-inch cubes.
In a bowl, toss the sweet potato cubes with olive oil, sea salt, black pepper, and smoked paprika until evenly coated.
Spread the sweet potatoes on the baking sheet and roast for 20-25 minutes, or until tender and slightly caramelized at the edges.
While the potatoes roast, rinse and drain the black beans, then warm them in a small saucepan over low heat.
Prepare the dressing by whisking together the non-fat Greek yogurt, lemon juice, and half of the crumbled feta cheese in a small bowl until smooth.
Place the fresh baby spinach in a large serving bowl as the base.
Top the spinach with the roasted sweet potatoes and warm black beans.
Drizzle the creamy feta-yogurt sauce over the bowl and sprinkle with the remaining feta cheese and hemp seeds.