01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - Toss carrots and red onion with 1 tablespoon olive oil, salt, and pepper. Spread in a single layer on the baking sheet. Roast for 25-30 minutes, turning once, until tender and lightly caramelized.
03 - Combine quinoa and water in a medium saucepan. Bring to a boil, reduce heat to low, cover, and simmer for 15 minutes or until water is absorbed. Remove from heat, fluff with a fork, and let stand covered for 5 minutes.
04 - Whisk together tahini, olive oil, lemon juice, maple syrup or honey, garlic, cumin, salt, and pepper until smooth. Add a splash of water if needed to reach a pourable consistency.
05 - In a large bowl, gently mix the warm quinoa with roasted carrots, red onion, spinach, and parsley. Drizzle with the tahini dressing and toss until coated.
06 - Transfer salad to a platter or individual bowls. Top with feta cheese (if using) and toasted pumpkin seeds. Serve warm.