Pat the chicken pieces dry and season them with kosher salt and ground black pepper.
In a shallow dish, whisk the eggs with 2 teaspoons water until slightly blended; season with a pinch of salt and pepper.
In another shallow dish, combine the almond flour, garlic powder, onion powder, Italian seasoning, paprika, chili powder, and cayenne pepper (if using).
One at a time, dip each chicken piece into the egg mixture, then dredge in the almond flour mixture until thoroughly coated.
Heat a large skillet over medium heat and lightly coat it with avocado oil spray.
Working in batches to avoid overcrowding, cook the nuggets about 3–4 minutes per side until golden brown and cooked through (internal temperature 165°F).
Transfer cooked nuggets to a paper towel–lined plate to drain any excess oil.
For extra crispiness, place the cooked nuggets in a preheated 400°F oven for 5 minutes before serving with your preferred gluten-free dipping sauce.