Creole Chicken and Sausage Gumbo Recipe

Name: Creole Chicken and Sausage Gumbo Recipe
Ingredients: 1 lb smoked sausage sliced in coins; 1 lb boneless skinless chicken thighs; 12 oz bag frozen okra and tomatoes optional; 1/3 cup vegetable oil; 1/4 cup all-purpose flour; 1 finely diced onion; 1 finely diced green bell pepper; 2 finely diced celery stalks; 1 T finely chopped parsley; 2 T chopped green onions; 1 T crushed or minced garlic; 8 cups chicken stock or broth; 1 T onion powder; 1 T garlic powder; 2 tsp Accent seasoning optional; Creole or Cajun seasoning to taste; 1/2 tsp Gumbo file; warm white rice to serve