01 - Set the oven to 425°F and allow it to reach full temperature.
02 - Place zucchini, bell peppers, red onion, eggplant, cherry tomatoes, and chickpeas in a large mixing bowl.
03 - Drizzle olive oil over the vegetables and chickpeas. Add oregano, thyme, smoked paprika, salt, and pepper. Toss until everything is evenly coated.
04 - Spread the seasoned mixture on a parchment-lined baking sheet in a single, even layer.
05 - Roast for 25 to 30 minutes, stirring once halfway through, until the vegetables are golden and tender.
06 - In a small bowl, whisk together tahini, lemon juice, water, minced garlic, cumin, and salt until smooth and creamy. Add more water if a thinner consistency is preferred.
07 - If using a grain base, divide cooked quinoa or brown rice among 4 serving bowls. Top each with the roasted vegetable and chickpea mixture.
08 - Drizzle generously with tahini-lemon dressing. Finish with fresh parsley, kalamata olives, and lemon wedges. Serve warm.