Preheat your oven to 425°F (220°C).
In a small bowl, combine ground cumin, ground coriander, smoked paprika, garlic powder, salt, and pepper.
Rub the spice mixture evenly over the chicken breast.
Place the seasoned chicken on a baking tray lined with parchment paper.
On another tray, toss the red bell pepper, zucchini, and red onion with olive oil, and a pinch of salt and pepper.
Roast both the chicken and vegetables in the preheated oven. Roast the chicken for about 20-25 minutes or until fully cooked and the vegetables for about 15 minutes until tender and slightly charred.
While the chicken and vegetables are roasting, prepare 1/2 cup of cooked quinoa according to package instructions if not pre-cooked.
Once cooked, slice the chicken into strips.
Assemble your bowl by layering the quinoa, roasted vegetables, and sliced chicken.
Finish with an extra drizzle of olive oil if desired, and serve warm.