Preheat oven to 400°F (200°C). Toss sweet potatoes with olive oil, paprika, garlic powder, salt, and pepper.
Spread sweet potatoes on a baking sheet and roast for 20-25 minutes, flipping halfway, until tender and caramelized.
Season chicken cubes with garlic powder, onion powder, salt, and pepper.
Heat olive oil in a large skillet over medium-high heat. Cook chicken for 5-7 minutes until golden and cooked through.
In a small bowl, whisk together Greek yogurt or mayonnaise, lime juice, sriracha, cumin, paprika, cayenne (if using), and salt until thick and smooth.
Cook rice according to package instructions and steam or sauté green vegetables as desired.
Divide cooked rice among bowls, then top with roasted sweet potatoes, pan-seared chicken, and green vegetables.
Drizzle generously with the creamy spiced sauce and garnish with fresh cilantro or parsley.
Serve immediately and enjoy.