Slow Cooker Freezer Pack Gumbo

Name: Slow-Cooker Freezer-Pack Gumbo
Ingredients: 1 pound boneless skinless chicken thighs, cut into 2-inch pieces; 1 pound andouille sausage, thinly sliced; 1 large onion, chopped into 3/4-inch pieces; 1 green bell pepper, cut into 3/4-inch pieces; 2 stalks celery, cut crosswise into 3/4-inch pieces; One 16-ounce bag frozen sliced okra; 1/4 cup long-grain white rice; 3 tablespoons Cajun seasoning; One 28-ounce can diced tomatoes; Kosher salt and freshly ground black pepper; Hot sauce and crusty bread, for serving