Melt the butter in a large pot over medium heat. Add onion, garlic, celery, and bell pepper; cook and stir until vegetables are softened, about 5 minutes.
Stir in the flour until vegetables are evenly coated. Pour in the chicken broth and half-and-half cream; stir until the mixture is smooth. Add tomatoes, thyme, oregano, pepper, and bay leaf. Simmer for 20 minutes.
Stir in the tuna and parsley, and simmer for 5 minutes more. Remove the bay leaf before serving.
Interesting Facts
Fish chowder is a hearty and flavorful soup that has been around for centuries.
Fish chowder is a great source of protein and essential vitamins and minerals.
Fish chowder can be made with any type of fish, including salmon, cod, and halibut.