Preheat your air fryer to 400°F (200°C).
Cut the sweet potato into 1/2-inch cubes and slice the zucchini into rounds.
In a small bowl, combine the almond flour, garlic powder, onion powder, dried oregano, sea salt, black pepper, and lemon zest.
Pat the chicken breast dry with a paper towel and brush it lightly with half of the olive oil.
Press the chicken into the almond flour mixture until evenly coated on both sides.
Toss the sweet potato and zucchini with the remaining olive oil and a pinch of salt.
Place the chicken and sweet potatoes in the air fryer basket in a single layer, ensuring they do not overlap.
Cook for 10 minutes, then add the zucchini to the basket and flip the chicken.
Continue air frying for another 6-8 minutes until the chicken reaches an internal temperature of 165°F and the vegetables are golden brown.
Let the chicken rest for 3 minutes before slicing and serving alongside the roasted vegetables.