Place 900 milliliters / 1.9 pints water in a large pan and bring to the boil. Add the white miso paste, stir well and bring back to the boil. Reduce the heat and keep warm until ready to use.
Meanwhile, cook the thai rice according to packet instructions. Drain and set aside.
Heat the vegetable oil in a wok or large frying pan, add the tofu and fry for 3-4 minutes over a high heat until golden and crisp. Add the mushrooms and snow peas and stir-fry for 2 minutes. Add the rice, sweetcorn, spring onions and soy sauce and stir-fry for 3-4 minutes. Season to taste.
Serve immediately on a plate with a small bowl of the miso soup and mixed japanese pickles.
Japanese style fried rice served with a miso soup.