Preheat the cast iron pan over medium heat. In a bowl, combine 1/2 lbs of ground pork with 1 tbsp of soy sauce, 1 tbsp of oyster sauce, and 1/4 cup of chopped kimchi. Once the pork absorbs all of the juice that is in the marinade bowl, add 2 tbsp of cooking oil into the cast iron pan and add the pork in.
Spread the ground pork evenly on the pan and try not to stir it until the bottom side gets brown. Cook and stir until there is no obvious raw part on the pork. Spread the pork to the side. Add the frozen mixed vegetable to the middle of the pan, together with a pinch of salt, and cook for 1 minute.
Mix the pork and the veggies, spread them again to the side of the pan, add the cabbage and a pinch of salt, and cook for 30 seconds. You can use a chopstick to gently stir the cabbage, which will be easier than using a spatula.
Push everything to one side of the pan, add 1 tbsp of cooking oil, and crack 1 egg in. Break the yolk and gently mix with the white. No need to stir the egg until you can smell it. Add 1 bowl of rice on the top and mix well. Stir occasionally and cook until you feel the rice is warm. Mix with the rest thing inside the pan.
Add the rest of kimchi, together with 1 tbsp of kimchi juice into the pan. Mix well. Turn off the heat. Add 1 tbsp of sesame seed oil and spring onion. Mix well. Sprinkle with furikake before serving.