Cook the barley in a large saucepan of boiling water for 15 minutes, then add the rice and cook for a further 25 minutes until tender, drain and rinse.
Meanwhile, heat the oil in a large frying pan and fry the onion, pepper and sweet potatoes for 5 minutes, stir in the Cajun seasoning and cook for a minute. Add the chopped tomatoes with ½ can water and the Walnuts, cook for 5 minutes.
Stir in the barley mix and prawns and cook for a further 5 minutes until the prawns are pink and cooked through, then sprinkle in the parsley to serve.
Notes
Cooks tipReplace the prawns with shredded roast chicken or remove for a vegetarian option.0.66g salt