Place the frozen broccoli florets (I used baby broccoli which are smaller in size) in a large sized bowl.
Add salt, olive oil and seasonings (garlic powder, onion powder and black pepper) to the bowl, mix well with the frozen broccoli using a large spoon.
Preheat the air fryer to 350 degree Fahrenheit.
Once the air fryer is preheated, add the seasoned frozen broccoli to the air fryer basket carefully.
Arrange the broccoli in a single layer in the air fryer basket for even cooking (air fryer will be hot since it is preheated so make sure to be careful!).
Press the timer button to set the cooking time to 10 minutes and let the broccoli cook for ten minutes.
Keep in mind that we used baby broccoli florets here, which are smaller in size than regular broccoli florets.
If you are using frozen broccoli florets that are of normal size, which are larger in size than baby broccoli florets, you will need to cook the frozen broccoli for about 15 minutes time instead of ten minutes, and see if the broccoli is done to your preference.
Once the cooking is done, the air fryer beeps and you can turn off the air fryer.
Carefully pull out the air fryer basket (it will be hot), transfer the broccoli to serving plates, enjoy!