Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
Pat the chickpeas dry with a paper towel. In a bowl, toss the chickpeas with 1 tablespoon olive oil, smoked paprika, cumin, salt, and black pepper. Spread them evenly on the baking sheet and roast for 20-25 minutes, shaking the pan halfway through, until crispy. Set aside to cool slightly.
While the chickpeas roast, prepare the dressing: In a small bowl, whisk together the tahini, lemon juice, maple syrup, minced garlic, and a pinch of salt. Add water, 1 tablespoon at a time, until the dressing reaches a smooth, pourable consistency. Adjust seasoning to taste.
Prepare the vegetables: Halve the cherry tomatoes, slice the cucumber, and shred the carrots if not pre-shredded. Set aside with the baby spinach or mixed greens.
Assemble the bowls: Divide the cooked quinoa or brown rice among 4 bowls. Top each with a portion of roasted chickpeas, cherry tomatoes, cucumber, shredded carrots, and a handful of spinach or greens.
Drizzle each bowl with the tahini dressing. Garnish with fresh parsley or sesame seeds if desired. Serve your vegan chickpea Buddha bowl immediately and enjoy a colorful, plant-based meal!