01 - Set oven to 425°F and allow to fully heat.
02 - In a large bowl, toss zucchini, red and yellow bell peppers, red onion, eggplant, cherry tomatoes, and drained chickpeas together.
03 - Drizzle olive oil over the vegetables and chickpeas. Sprinkle with oregano, thyme, smoked paprika, salt, and pepper. Toss until evenly coated.
04 - Spread the seasoned mixture across a parchment-lined baking sheet in a single, even layer.
05 - Roast for 25 to 30 minutes, stirring once at the halfway mark, until vegetables are golden-edged and tender.
06 - While vegetables roast, whisk together tahini, lemon juice, water, minced garlic, cumin, and salt in a small bowl until smooth and creamy. Thin with additional water if a looser consistency is preferred.
07 - Divide cooked quinoa or brown rice among 4 serving bowls. Mound the roasted vegetable and chickpea mixture on top.
08 - Drizzle each bowl generously with tahini-lemon dressing. Finish with chopped parsley, kalamata olives, and lemon wedges. Serve warm.