Prepare your tofu by pressing out excess moisture with tofu press or heavy object.
Once pressed, cut your tofu into cubes
Add your cubed tofu into a medium bowl and pour on soy sauce. Toss to coat.
Sprinkle nutritional yeast, onion powder garlic salt, and pepper and red pepper flakes. Toss to coat.
Pour prepared tofu into air fryer basket and air fryer at 400 F for 15 minutes, tossing halfway through cooking time.
Let cool 5 minutes and serve.