01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper.
02 - In a bowl, toss chickpeas with olive oil, harissa paste, smoked paprika, and salt until evenly coated. Spread on the baking sheet and roast for 20–25 minutes, stirring halfway, until crispy and slightly caramelized.
03 - Rinse quinoa under cool water. In a saucepan, bring 2 cups water to a boil, add quinoa, reduce heat to low, cover, and simmer for 15 minutes. Remove from heat and let stand 5 minutes, then fluff with a fork.
04 - Halve tomatoes, dice cucumber, julienne carrot, slice onion, and chop parsley.
05 - Whisk tahini, lemon juice, minced garlic, salt, and 2 tbsp cold water in a medium bowl. Beat vigorously until creamy and pale. Add more water, 1 tsp at a time, until light and fluffy.
06 - Divide quinoa among 4 bowls. Top with spinach, tomatoes, cucumber, carrot, and red onion. Add roasted harissa chickpeas. Drizzle generously with whipped tahini.
07 - Garnish with fresh parsley, toasted pumpkin seeds, lemon wedges, and crushed red pepper if desired. Serve immediately.