01 - Heat the vegetable oil in a large skillet or Dutch oven over medium-high heat.
02 - Add the ground beef and cook, breaking it up with a spoon, until browned and cooked through, about 5 minutes. Drain excess fat if necessary.
03 - Add the onion, green and red bell peppers, celery, and garlic. Sauté for 4 to 5 minutes until softened.
04 - Stir in the Cajun seasoning, smoked paprika, thyme, oregano, black pepper, cayenne, and salt. Cook for 1 minute until fragrant.
05 - Add the rinsed rice and stir to coat with the spices and vegetables.
06 - Pour in the chicken broth and bring to a boil.
07 - Reduce the heat to low, cover, and simmer for 18 to 20 minutes, or until the rice is tender and the liquid is absorbed.
08 - Remove from heat and let stand, covered, for 5 minutes. Fluff with a fork.
09 - Garnish with fresh parsley and spring onions. Serve hot.