Preheat your oven to 425°F (220°C). High, dry heat creates quick caramelization and a bit of char on the peppers and zucchini, concentrating their sweetness while keeping them firm enough so they don't turn to mush in the salad.

Rinse the quinoa in a fine-mesh sieve under cold water for 30–60 seconds, rubbing the grains between your fingers. Rinsing removes quinoa’s natural saponins (bitter coating) and yields a cleaner, nuttier flavor and fluffier cooked texture.

Combine the rinsed quinoa and 2 cups (480 ml) water or low-sodium vegetable broth in a medium saucepan with a pinch (about 1/8 tsp) of salt. Bring to a boil, then reduce to a low simmer, cover, and cook gently for 12–15 minutes until the liquid is absorbed. Remove from heat and let rest, covered, for 10 minutes to steam—this step allows the grains to finish cooking evenly and become fluffy rather than gluey.

While the quinoa cooks, toss the bell peppers, zucchini, and red onion with 3 tablespoons of olive oil, 1 teaspoon kosher salt, 1/4 teaspoon black pepper, and the optional smoked paprika and cumin (if using). Make sure everything is evenly coated—oil helps produce an even roast and carries the spices to the vegetable surfaces.

Spread the vegetables in a single layer on a rimmed baking sheet (use two sheets if crowded). Roast on the middle rack for 18–22 minutes, turning once halfway through. Roast until edges show deep golden-brown color and the vegetables have tendered but still hold some shape—this contrast of caramelized edges and tender interiors is key for texture in the salad.

In the last 5 minutes of the vegetables’ roasting time, add the drained chickpeas to the baking sheet, tossing them with a tablespoon of oil and a pinch of salt. Roast them alongside the vegetables so the chickpeas crisp slightly and develop a toasted flavor that contrasts with their creamy interior.

Make the dressing: In a medium bowl whisk together the tahini, fresh lemon juice, minced garlic, the remaining 2 tablespoons olive oil, 1/4 teaspoon kosher salt, and 1/4 teaspoon black pepper. If the dressing is very thick, whisk in warm water a teaspoon at a time until you reach a pourable but creamy consistency. Emulsifying the tahini with acid and oil mellows its bitterness and creates a silky sauce that clings to the quinoa and veggies.

Fluff the quinoa with a fork to separate the grains. Taste and adjust seasoning—quinoa can benefit from a little extra salt to brighten its mild nuttiness. Let it cool for 5–10 minutes; you want it warm, not piping hot, so it won’t wilt all the greens.

In a large mixing bowl combine the warm quinoa, roasted vegetables, crispy chickpeas, baby spinach (or arugula), and chopped parsley. The warm quinoa and vegetables will lightly wilt the greens, giving a more integrated texture while keeping some fresh bite.

Pour about two-thirds of the lemon-tahini dressing over the salad and toss gently to combine. Taste and add more dressing as desired—start conservatively because tahini is rich and you can always add more. Adjust salt, pepper, and lemon if needed.

Transfer to a serving bowl or platter and drizzle any remaining dressing over the top. Garnish with a few extra parsley leaves and a grind of black pepper. Serve slightly warm or at room temperature for the best balance of bright and roasted flavors.

Leftovers: store in an airtight container in the fridge up to 3–4 days. Keep any extra dressing separate and add before serving to preserve texture. Reheat gently (microwave or skillet) if you prefer warm—avoid overheating to keep the tahini from separating.