Rinse the long-grain rice under cold water until the water runs clear. This helps to remove excess starch.
In a medium saucepan, bring the chicken broth to a boil. Add the rinsed rice, reduce the heat to low, cover, and simmer for about 18-20 minutes or until the rice is tender and has absorbed the liquid.
In a large skillet, heat the olive oil over medium heat. Add the sliced andouille sausage and sauté for about 5 minutes until browned.
Add the diced onion, bell pepper, and celery to the skillet with the sausage. Sauté for an additional 5 minutes until the vegetables are softened.
Stir in the minced garlic and Cajun seasoning. Cook for another minute until fragrant.
Add the peeled shrimp to the skillet and cook for about 3-4 minutes until they turn pink and opaque.
Once the rice is cooked, fluff it with a fork and add it to the skillet with the sausage and shrimp mixture. Stir well to combine and heat through.
Season with salt and black pepper to taste.
Serve hot, garnished with sliced green onions and chopped parsley.
Notes
Adjust the Cajun seasoning to taste for more or less heat.