Cut the tofu into bite-sized pieces.
Boil chewy noodles or udon noodles in boiling water, then rinse them in cold water.
Julienne the carrot and onion.
Heat cooking oil in a pan and fry the tofu until golden.
Push the tofu to one side and stir-fry the carrot and onion.
Add the cooked noodles and oyster sauce to the pan, and stir-fry together.
Mix all the ingredients evenly to finish.