Heat the olive oil in a large pot over medium heat. Add the garlic, onion, bell pepper, celery, and sausage. Cook, stirring occasionally, until the vegetables are softened, about 5 minutes.
Stir in the chicken broth, tomatoes, bay leaves, cajun seasoning, black pepper, thyme, oregano, and cayenne pepper. Bring to a simmer and cook for 10 minutes.
Stir in the shrimp, crab meat, parsley, and lemon juice. Simmer for 5 minutes, or until the shrimp are cooked through.
Serve hot with cooked white rice, if desired.
Interesting Facts
Gumbo is a popular dish in Louisiana, especially in the city of New Orleans.
The name 'gumbo' is derived from the African word 'kingumbo', which means okra.
Roux is a mixture of fat (usually butter or oil) and flour that is used to thicken sauces and soups.
Rouxless gumbo is a great way to enjoy gumbo without the additional fat and calories of the roux.