Manhattan-Style Fish Chowder

Melt butter and oil in a large Dutch oven or heavy bottomed soup pan over medium- high heat.  Add onion, carrot, celery, pepper  and garlic.  Sauté until lightly browned.  Add zucchini.  Stir in tomato paste. Cook 1 min.  Add white wine, cooking an additional min.  Add remaining ingredients except for the fish.  Bring to a boil.  Reduce heat and allow it to simmer 30 min.  Add fish and simmer for an additional 10-15 min, or until the fish is cooked through and flakes easily.  Enjoy!