Add broccoli florets to a large bowl. Drizzle with olive oil and toss until evenly coated.
Sprinkle with garlic powder, salt, and pepper, tossing again to distribute seasoning.
Arrange broccoli in a single layer in the air fryer basket. Cook for 8 minutes.
Remove the basket, shake or toss the broccoli, then sprinkle parmesan evenly over the top. Toss to fully coat the broccoli with the parmesan cheese.
Serve immediately or cool completely before storing for meal prep.
Notes
Broccoli florets come in different sizes, so I would suggest trimming them down to relatively the same size so that the broccoli cooks evenly.Keep some room in the air fryer basket or container so that it does not get croweded.Use enough parmesan cheese to coat the broccoli evenly after it is finished in the air fryer.