Heat the oil in a large frying pan or wok. Add the prawns and all the vegetables except the spinach. Cook for 10 mins or until softened.
Add the spinach and cashew nuts.
Whisk the lime juice, sweet chilli sauce and soya sauce together and pour over. Sprinkle over the fresh coriander.
Serve with buckwheat noodles (gluten free), egg noodles or brown rice.