01 - Heat the vegetable oil in a large, heavy-bottomed skillet or Dutch oven over medium-high heat.
02 - Add the sliced beef sausage and cook for 3 to 4 minutes until browned. Remove sausage with a slotted spoon and set aside.
03 - Add ground beef to the skillet. Cook, breaking it up with a spoon, until browned and cooked through. Drain excess fat if needed.
04 - Add the diced onion, bell pepper, and celery. Sauté for 5 to 6 minutes, until vegetables are softened.
05 - Stir in the garlic and cook for 1 minute until fragrant.
06 - Add the rice to the pan, stirring to coat it in the oil and vegetables. Toast for 2 to 3 minutes.
07 - Return the sausage to the pan. Sprinkle in the Cajun seasoning, smoked paprika, dried thyme, black pepper, cayenne pepper, and salt. Mix well.
08 - Pour in the chicken broth and add the bay leaf. Bring to a boil, then reduce heat to low. Cover and simmer for 20 to 22 minutes, or until rice is tender and liquid is absorbed.
09 - Remove from heat and let stand, covered, for 5 minutes. Discard bay leaf. Fluff rice with a fork. Garnish with green onions and parsley before serving.