Preheat your air fryer to 400°F.
Slice the zucchini into half-inch thick half-moons.
In a medium bowl, toss the frozen broccoli and sliced zucchini with the olive oil, garlic powder, onion powder, sea salt, and black pepper until evenly coated.
Place the cassava-breaded chicken cutlet and the seasoned vegetables in the air fryer basket in a single layer.
Air fry for 10 to 12 minutes, flipping the chicken piece halfway through, until the coating is crispy and golden and the vegetables are tender-crisp.
While the chicken and vegetables are air-frying, heat a non-stick skillet over medium heat.
Pour the egg whites into the skillet and scramble gently until they are fully set and fluffy.
Sprinkle the shredded cheddar cheese over the egg whites and fold together until the cheese is melted.
Plate the crispy chicken cutlet alongside the cheesy egg white scramble and the roasted vegetables, and serve immediately.