Preheat a wok or pan to high heat.
Drizzle a bit of vegetable oil and add enough chicken to cover the base of the pan. If you add more it won't become golden. Leave the chicken still so that it can become golden on one side, a couple minutes. Flip it and let them become golden on all sides. Then remove them and repeat with the rest of the chicken. Reserve them.
Still on high heat, add approximately one teaspoon of vegetable oil, the white part of the spring onion and the red bell pepper. Cook them mixing every once in a while until they turn golden brown.
Add the ginger and garlic and cook them for 30 seconds while stirring to prevent them from burning.
Add the rice, chicken, soy sauce, oyster sauce and sesame oil (still on high heat) and mix.
Now we're going to fry the rice a bit so the flavours evolve further. For this reason, you want to flatten the rice and leave it still for 2-3 minutes so a crust forms, then stir to combine. Repeat this about 6 times.
Add the green part of the spring onion and the omelette and stir. Serve immediately.