2 lbs fish fillets (cod, haddock or other white fish.)2 tablespoons olive oil1 onion, chopped1 leek, cleaned and sliced (white part only)4 garlic cloves, minced1 1⁄2 cups canned plum tomatoes (about 1 medium sized can)2 tablespoons tomato paste1 cup white wine1⁄2 teaspoon cumin1⁄2 teaspoon oregano1⁄2 teaspoon rosemarysalt and pepper1 green pepper, sliced1 lemon, sliced1 bunch fresh parsley, minced