One Pot Chicken and Shrimp Gumbo

Name: One Pot Chicken and Shrimp Gumbo
Ingredients: 3 tablespoons vegetable oil; 1/3 cup all-purpose flour; 2 red bell peppers ribs and seeds removed, chopped; 1 medium onion finely chopped; 2 cloves garlic minced; 1 teaspoon dried oregano; 1 tablespoon of tomato paste; 4 cups chicken broth; 1 tablespoon hot sauce optional; Coarse salt and ground pepper; 1 10 ounce package of frozen sliced okra; 8 ounces smoked pre-cooked sausage such as andouille or kielbasa cut into 1/2 inch thick slices; 4 cups of shredded chicken; 1/2 pound of large shrimp