Preheat your air fryer to 400°F.
Cut the chicken breast into uniform 1-inch cubes and chop the broccoli, bell pepper, and zucchini into bite-sized pieces.
In a large mixing bowl, combine the chicken and vegetables with the avocado oil, garlic powder, onion powder, smoked paprika, sea salt, and black pepper.
Toss everything thoroughly until the chicken and produce are evenly coated in the oil and spices.
Place the mixture into the air fryer basket in a single layer, ensuring there is enough space for air to circulate.
Air fry for 12 to 15 minutes, shaking the basket halfway through the cooking time to ensure even browning.
Verify the chicken has reached an internal temperature of 165°F and the vegetables are tender with slightly charred edges.
Transfer the chicken and vegetables to a plate over the warm cooked quinoa and finish with a fresh squeeze of lemon juice.