Heat the oil in a large, lidded pan over a medium-low heat and fry the onion, celery and peppers for 8-10 mins until softened. Tip in the beef mince and cook for 5-6 mins until browned, then stir in the garlic, fry for a minute and add the Cajun spice mix. Cook for a minute, then turn the heat up to medium.

Tip in the rice and pour in the stock and simmer, covered, for 15-18 mins until the rice is cooked, check after 10 mins to test the rice. If the rice needs more liquid, add water or more stock, a little at a time, as needed. Scatter over the spring onions to serve.