01 - Preheat the air fryer to 375°F for 3 to 5 minutes to ensure even cooking.
02 - In a large mixing bowl, combine broccoli florets, olive oil, minced garlic, salt, black pepper, and red pepper flakes. Toss thoroughly until the broccoli is evenly coated.
03 - Transfer the seasoned broccoli to the air fryer basket, spreading it in a single layer for optimal crispiness.
04 - Air fry at 375°F for 10 to 12 minutes, shaking the basket halfway to promote uniform browning and texture.
05 - Once golden and crisp, remove broccoli from the air fryer. Sprinkle with grated parmesan cheese and drizzle with lemon juice if desired. Serve immediately.