Begin by dicing the chicken into bite-sized pieces and slicing the turkey sausage. Chop the onion, bell pepper, celery, and mince the garlic. Slice the okra and green onions for garnish so everything is ready to go.
Heat the vegetable oil in your Dutch oven over medium-high heat. Add the sliced turkey sausage first and cook until browned and slightly crispy. Remove the sausage and set aside. Next, add the diced chicken and cook until browned but not fully cooked through.
In the same pot, add the chopped onion, bell pepper, celery, and garlic. Sauté until the vegetables are softened and fragrant, about 4-5 minutes.
Sprinkle in the Cajun seasoning, thyme, cayenne pepper, salt, and pepper. Stir to coat the vegetables evenly. Pour in the chicken broth and the canned diced tomatoes with their juices. Add the bay leaves, then bring everything to a boil.
Reduce heat to low and return the browned chicken and sausage to the pot. Let the gumbo simmer gently for at least 30 minutes, stirring occasionally.
About 10 minutes before serving, stir in the sliced okra. Adjust seasoning with salt and pepper if needed.
Ladle the gumbo over a bed of cooked white rice and sprinkle with fresh green onions. Serve hot and enjoy!