Heat butter in a Dutch oven over medium heat.

Add sausage, broken into small chunks, and brown.

Add minced onion, celery, and green pepper to the pot.

Cook until onions are tender.

Stir in chicken broth, tomatoes, parsley, garlic powder, salt, pepper, thyme, red pepper, and bay leaf.

Bring the mixture to a boil.

Add uncooked rice and stir well.

Cover the Dutch oven and simmer for 20-30 minutes, or until rice is cooked.

Add cooked shrimp or crab meat to the jambalaya.

Heat for 5 minutes more, uncovered, until heated through.

Serve hot.