Slice the king oyster mushroom into thin pieces, chop the cabbage into 2cm squares, and finely chop the green onions.

Boil a pot of water, add salt (1 tbsp), and cook the spaghetti according to package instructions. Reserve 1 tbsp of pasta water and drain the rest.

Heat olive oil in a frying pan over medium heat, add chicken mince, and cook until the color changes. Add the king oyster mushroom and cabbage, and stir-fry until softened.