Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
In a small bowl, mix together the harissa paste, honey, olive oil, garlic powder, onion powder, smoked paprika, salt, and pepper.
Place the chicken breasts on the prepared baking sheet. Brush the harissa mixture generously over both sides of the chicken.
Bake in the preheated oven for 20-25 minutes, or until the chicken is cooked through and reaches an internal temperature of 165°F (75°C). Let it rest for 5 minutes before slicing.
While the chicken is baking, prepare the quinoa according to package instructions if not already cooked.
In a large bowl, combine the cooked quinoa, cherry tomatoes, cucumber, and baby spinach. Toss gently to mix.
To assemble the bowls, divide the quinoa mixture among four bowls. Top each with sliced chicken, a dollop of hummus, and a sprinkle of feta cheese. Garnish with fresh parsley.