01 - Rinse the quinoa under cold water. In a medium saucepan, combine quinoa, water, and salt. Bring to a boil, then reduce heat, cover, and simmer for 15 minutes or until water is absorbed. Fluff with a fork and let cool slightly.
02 - In a small bowl, whisk together olive oil, lemon juice, tahini, minced garlic, oregano, salt, and pepper to make the dressing.
03 - Halve the cherry tomatoes, dice the cucumber, slice the red onion, halve the olives, chop the spinach, and slice the roasted red peppers.
04 - Divide the quinoa evenly among 4 bowls. Arrange tomatoes, cucumber, red onion, olives, spinach, and red peppers in sections over the quinoa.
05 - Add a generous scoop of hummus to each bowl. Drizzle with the lemon-tahini dressing. Sprinkle with feta cheese (if using) and chopped parsley. Serve immediately.