Striped Bass in Tomato Sauce

Ingredients

• 1 onion, sliced thinly
• As required olive oil
• 1 green zucchini, halved lengthwise and cut in 1-cm / ½” slices
• 1 yellow zucchini, halved lengthwise and cut in 1-cm / ½” slices
• 250 ml / 1 cup dry white wine
• 500 ml / 2 cups fish stock
• 4 fillets striped bass, skin removed
• 4 Italian plum tomatoes, peeled, seeded and quartered
• 1 sprig each thyme, tarragon and oregano
• To taste salt and freshly ground pepper
• To taste chopped fresh herbs