Break up the tofu in to even sized chunks. Place the tofu into a tub with a lid and sprinkle on the cornflour and give them a toss to make sure each piece is coated evenly.
Heat up the oil in a frying pan and carefully place each coated tofu cube into the oil making sure they do not touch. (you may have to do this in batches).
Fry the pieces until golden on all sides.
Roughly chop the onion and bell peppers into a similar size to the tofu.
Add the vegetables into the pan with the tofu and fry until soft.
Put all of the seasoning ingredients together in a separate bowl and stir making sure they are well combined.
Sprinkle the seasoning onto the tofu and vegetables and stir fry until coated
Serve up with some rice and top with sesame seeds and spring onion.
Notes
Prep ahead- You can cut down the time it takes to make this meal even more by pre chopping the vegetables and tofu and keeping them in tupperwares in the fridge and premixing the seasoning.