Roast the Sweet Potatoes: Preheat the oven to 400°F (200°C). Spread the cubed sweet potatoes on a baking sheet, drizzle with olive oil, and roast for 25-30 minutes, flipping halfway through, until tender.
Cook the Quinoa: Rinse the quinoa under cold water. In a medium pot, bring 2 cups of water to a boil. Add the quinoa, reduce the heat to low, cover, and simmer for 12-15 minutes until the liquid is absorbed. Fluff with a fork and set aside.
Make the Thai Peanut Sauce: In a small bowl, whisk together peanut butter, soy sauce, lime juice, maple syrup, garlic, ginger, and red chili flakes (if using). Gradually add water until the sauce reaches a smooth, pourable consistency.
Assemble the Bowls: Divide the mixed greens among serving bowls. Top each with roasted sweet potatoes, cooked quinoa, chickpeas, sliced bell pepper, shredded cabbage, and cucumber slices.
Drizzle and Garnish: Pour the Thai peanut sauce over each bowl and garnish with chopped cilantro and peanuts.
Serve and Enjoy! This power bowl is best enjoyed fresh but also makes a great meal-prep option for the week.