Creole jambalaya

Name: Creole jambalaya
Ingredients: 1/2 onion; 1 pepper I used 1/2 red, 1/2 yellow but any combination of colors works; 1 rib celery; 2 cloves garlic; 1/2 lb chicken 225g, breast or thighs; 14.5 oz finely chopped tomatoes 411g, 1 can; 2 cups chicken stock 480ml; 1 cup rice 200g, approx; 1 bay leaf; 1/2 tsp dried thyme; 1/2 tsp dried oregano; 1/4 tsp paprika; 1 pinch cayenne pepper or more, to taste; 1/2 lb raw shrimp 225g prawns; 6 oz smoked andouille sausage 170g, or other spicy smoked sausage