Ingredients
1 tbsp vegetable oil, 300g mushrooms - quartered, 3cm piece of fresh root ginger - peeled and grated, 2 cloves garlic - finely chopped, 3 spring onions - sliced, 0.25 tsp dried chilli flakes, 1 tbsp honey, 2 tbsp soy sauces, 2 tbsp cashew nuts or peanuts, 100g watercress, roughly chopped.