Stir-fries are a great way to use up small amounts of food in the fridge ... spring onions and mushrooms, and stir fry for another 3-4 minutes until they are all lightly cooked.
Add the garlic and cook over high heat until fragrant, 20 seconds. Add the bok choy and stir-fry until the leaves start to wilt, 2 minutes. Add the stock and cook, stirring, until slightly ...