01 - Preheat oven to 425°F. Line two baking sheets with parchment paper for easy cleanup and to prevent sticking.
02 - Pat chickpeas thoroughly dry with a clean kitchen towel. Transfer to a bowl and toss with olive oil, smoked paprika, cumin, garlic powder, salt, and pepper until evenly coated. Spread seasoned chickpeas on half of one prepared baking sheet in a single layer.
03 - Arrange sweet potato, bell pepper, zucchini, and red onion on the second baking sheet. Drizzle with olive oil, then sprinkle with oregano, salt, and pepper. Toss vegetables with hands or utensils to ensure even coating.
04 - Place both baking sheets in the preheated oven. Roast for 25–30 minutes, stirring once halfway through cooking time. Chickpeas should be crispy and vegetables tender with lightly browned edges.
05 - While roasting, combine rinsed quinoa, water or broth, and salt in a saucepan. Bring to a boil over high heat, then reduce heat to low, cover, and simmer for 15 minutes. Remove from heat and let stand covered for 5 minutes. Fluff with a fork before serving.
06 - Whisk together tahini, lemon juice, water, maple syrup, garlic, salt, and pepper in a small bowl until completely smooth. Add additional water, 1 teaspoon at a time, if needed to achieve pourable consistency.
07 - Divide cooked quinoa evenly among four serving bowls. Arrange roasted vegetables, crispy chickpeas, fresh spinach or greens, and pumpkin seeds on top of the quinoa. Drizzle generously with tahini dressing and garnish with chopped fresh herbs if desired. Serve immediately while chickpeas remain crisp.