Wash, slice and chop all vegetables.
Fry the onions gently in grape seed oil until beginning to soften, then add the peppers, chilli and carrots until softened.
Remove the onion mixture from the pan, then fry the prawns quickly, stirring through the garlic, cashew nuts and ginger.
Add the vegetables back to the pan, along with the mange tout and bean sprouts, and heat back through. Serve.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.