Spanish-Style Cusk

Ingredients

• 13 cup olive oil
• 8 to 10 scallions, trimmed (with most of the green left on), cleaned and minced (1 cup)
• 6 large garlic cloves, peeled and sliced fine (3 tablespoons)
• 2 green bell peppers, seeded and cut into 1/2-inch pieces (2 cups)
• 2 small zucchini (10 ounces), washed and cut into 1/2-inch pieces (2 cups)
• 1 1/2 teaspoons salt
• 1/2 teaspoon freshly ground black pepper
• 6 plum tomatoes (1 pound), halved, seeded and cut into 1/2-inch pieces (2 1/2 cups)
• 6 pieces cusk, each about 1 1/2 inches thick and weighing about 6 ounces