Mix the salt, pepper, and garlic powder. Coat the cauliflower florets with these seasonings and any other optional spices you like. Add the beaten egg and toss to coat the cauliflower evenly.

In a separate bowl, combine the breadcrumbs and Parmesan cheese. Dredge the cauliflower pieces in this mixture, shaking off any excess.

Spray all sides of the coated cauliflower with cooking oil. Ensure there are no dry spots to prevent burning in the air fryer.

Spray the air fryer basket with oil (or line it with a perforated silicone mat or parchment paper) and arrange the cauliflower in a single layer.

Air fry at 360°F for 8 minutes. Flip the cauliflower gently and spray any dry spots with oil.

Continue air frying at 360°F for an additional 3-5 minutes until the cauliflower is crispy and golden brown or to your desired texture.

Toss the cauliflower with the prepared buffalo sauce.

For extra crispiness or reheating, air fry the sauced cauliflower at 380°F for about 3 minutes or until it reaches your preferred texture. Garnish with chopped parsley, cilantro, and/or green onions if desired.