Cook the Bacon and Aromatics: In a large pot, heat the olive oil over medium heat. Add the chopped bacon and cook until it’s crisp. Add the leek, celery, carrots, and garlic, and sauté for 5-7 minutes until the vegetables are softened.
Add Potatoes and Broth: Add the chopped potatoes, fish broth (or water with fish sauce), and bay leaf to the pot. Heat the mixture until it reaches a rolling boil, then lower the heat and let it simmer for 10 to 15 minutes, or until the potatoes are fork-tender.
Prepare the Cream Base: In a separate bowl, whisk together the Greek cream cheese, cornstarch, and milk until smooth. Pour the mixture into the pot and stir to combine. Simmer for an additional 5 minutes, allowing the chowder to thicken slightly.
Add the Seafood: Gently fold in the salmon, shrimp, and crabmeat. Season with tarragon, thyme, salt, and black pepper. Let the chowder simmer on low heat for about 10 minutes or until the seafood is cooked through and tender.
Adjust Seasoning and Serve: Taste and adjust the seasoning with additional salt and pepper if needed. Remove the bay leaf before serving. Ladle the chowder into bowls and enjoy with fresh crusty bread or a side of Irish soda bread.