In a large dutch oven, melt butter over medium heat. Add the sliced kielbasa and cook until browned. Add in the onion and garlic and cook for 1 minute.
Add in the celery, red pepper, and green pepper. Stir and sauté until the vegetables are tender, about 5 to 7 minutes.
Stir in the flour, Cajun seasoning, and season with salt and pepper. Stir to coat the vegetables. Stir in the diced tomatoes and the tomato paste.
Slowly add the chicken stock. Throw in the bay leaves. Bring to a boil and simmer for 10 minutes.
Stir in the rice and cooked turkey. Simmer until the rice is tender, about five minutes. Remove bay leaves and serve.