First, I heat oil in my pot over medium heat and sauté the chopped onion and minced garlic until they're soft and fragrant, about 3-5 minutes. I avoid browning them too much here because I want their flavors but also a base that blends nicely with the rest.
Next I add sliced andouille sausage and chicken thigh pieces, letting them brown for about 5-7 minutes. Getting good color on the meat adds smoky, caramelized flavor. I then remove them briefly, which helps prevent overcooking while I prepare other ingredients.
I then add diced bell peppers and canned diced tomatoes (with juices), stirring for another 3-4 minutes until the peppers soften a bit. The tomatoes bring acidity and moisture; the peppers add sweetness and color—and they all help flavor the rice later.
After that base is ready, I stir in the long-grain rice plus paprika, cayenne, thyme, bay leaves, salt and pepper. Then I pour in the chicken broth, scrape up any tasty bits stuck to the pot (that’s flavor!), bring it to a boil, reduce heat to low, cover, and let it simmer for 20-25 minutes. When rice has absorbed most of the liquid and is tender, I fluff it gently with a fork.
Once the rice is cooked through, I remove from heat and let it rest a few minutes with the lid on. Then I stir back in the browned meats, adjust salt and heat if needed, and garnish with fresh parsley and sliced green onions for color and freshness before serving.