Cut the tofu into bite-sized pieces.
Prepare onion, green onion, bok choy, mushrooms, etc.
Add cooking oil and mala sauce to a pan and stir-fry over medium heat.
Add mushrooms, onion, and green onion, then stir-fry.
Add tofu and bok choy, then stir-fry quickly over high heat.
Taste and season with salt or soy sauce as needed.
Serve the finished dish in a bowl.