Prepare the Ingredients: Chop the vegetables and slice the sausage.
Layer in the Slow Cooker: Add the chicken, sausage, onion, bell pepper, celery, garlic, diced tomatoes, chicken broth, and seasonings (paprika, oregano, thyme, cayenne, salt, black pepper, and bay leaves). Stir well.
Cook: Cover and cook on low for 6 hours or high for 3-4 hours.
Add the Rice: Stir in the rice and continue cooking for another 30-45 minutes on high, or until the rice is tender.
Add the Shrimp: In the last 10 minutes, add the shrimp and Worcestershire sauce, stirring gently until the shrimp turns pink and is cooked through.
Serve: Remove bay leaves and serve hot, garnished with fresh parsley or green onions.