Cajun Chicken Cassoulet

Name: Cajun Chicken Cassoulet
Ingredients: 1 (16-oz.) package Cajun smoked sausage, cut into 1/2-inch slices; 6 skinned and boned chicken thighs (about 2 1/4 lb.); 1 teaspoon salt; 1 large onion, chopped; 1 medium-size green bell pepper, chopped; 2 celery ribs, chopped; 4 garlic cloves, chopped; 2 (16-oz.) cans cannellini beans, drained and rinsed; 1 (14 1/2-oz.) can diced tomatoes; 1 1/2 cups chicken broth; 1/2 (16-oz.) package frozen sliced okra, thawed; 1 1/2 teaspoons Cajun seasoning; Toasted Herbed Breadcrumb Topping (optional)