In a large bowl, toss the drained chickpeas with olive oil, cumin, paprika, turmeric, coriander, cayenne pepper (if using), salt, and pepper until well-coated.
Spread the seasoned chickpeas on a baking sheet in a single layer and roast for 25-30 minutes or until crispy, stirring halfway through.
While the chickpeas are roasting, prepare the vegetables: In a large bowl, combine the cherry tomatoes, cucumber, red onion, and parsley. Toss with a pinch of salt and set aside.
For the tahini dressing, whisk together the tahini, lemon juice, and enough water to achieve a smooth and pourable consistency. Season with salt to taste.
Once the chickpeas are done roasting, assemble the bowls: Start with a base of quinoa or couscous, then top with the roasted chickpeas and the fresh vegetable mixture.
Drizzle the tahini dressing generously over the bowls and toss lightly to combine.
Serve with warm pita bread or flatbread on the side for added texture.
Notes
Serve the bowls in colorful deep plates for a vibrant display.