Roast the Sweet Potatoes: Preheat the oven to 400°F (200°C). Toss the diced sweet potatoes with half the olive oil, paprika, salt, and pepper. Spread them on a baking sheet and roast for 20-25 minutes, flipping halfway through, until tender and caramelized.
Cook the Chicken: While the sweet potatoes are roasting, heat the remaining olive oil in a skillet over medium-high heat. Add the seasoned chicken and cook for 6-8 minutes, stirring occasionally, until golden brown and fully cooked. Remove from heat.
Prepare the Tahini Drizzle: In a small bowl, whisk together tahini, lemon juice, and water until smooth. Adjust the consistency by adding more water if needed.
Assemble the Bowl: Divide the cooked brown rice into serving bowls. Top with roasted sweet potatoes and cooked chicken. Drizzle with the creamy tahini sauce.
Serve and Enjoy: Garnish with fresh herbs or sesame seeds for added flavor. Serve warm for a comforting meal or chilled for a refreshing lunch.