Preheat the air fryer at 400 degrees F for 10 minutes.
Meanwhile, cut the cod into approximately 1” sticks.
Place the flour into one shallow bowl.
Place the egg into one shallow bowl, and whisk.
Place the panko, garlic powder, parsley, onion powder, and salt into a separate shallow bowl, and stir to combine.
Dip each fish stick first into the flour, then into the egg, and finally in the Panko breadcrumb mix, making sure you completely cover at each step.
Spray the air fryer with cooking spray and place half of the fish sticks into the basket.
Cook at 400 degrees F for 5 minutes, flip, and then cook another 4-5 minutes, depending on the thickness of your fish sticks.
Serve with tartar sauce and enjoy!