Separate the leftover rice grains if they are stuck, and spread them even on a plate to evaporate the extra moisture from them.
Use a grater to finely chop the cabbage, carrots, and capsicum. You can roughly chop the onions and green beans with a knife.
Take a wok, and heat oil in it. Add roughly chopped onions and ginger-garlic paste, and cook them on high heat for 1 minute. Make sure to continuously saute them, so that they do not burn.
Add chopped cabbage, carrots, and capsicum. Cook and saute them for 1 minute on high heat.
Add soy sauce, red chili sauce, sugar and salt. Mix well.
Add the leftover rice, and cook them for 1 minute on high heat.
Your Hong Kong fried rice is ready to be served.