How to cook Jambalaya

1 pound smoked sausage
1 cup chopped bell pepper
1/2 cup chopped onion
1/2 cup chopped celery
2 cloves garlic
1 tbs flour
1 can tomatoes
2 1/2 cups water
1 cup rice
1 tsp salt
1/2 tsp thyme
1/4 tsp black pepper
1/4 tsp cayenne pepper
1 pound shrimp

Cook sausage in a large Dutch oven until browned. Drained off all but 2 tbs of pan drippings. Fry green pepper, onion, celery, and garlic until tender. Add flour, stirring until blended. Stir in tomatoes and water; Bring to a boil. Add rice, salt, thyme, black pepper, and cayenne pepper. Return to a boil then reduce heat and simmer, covered for 20 minutes. Add shrimp and cook for 5 more minutes.