Vegetables Wash and clean. Carrots cut into slices, onion and garlic into fine slices. Celery is cut, and the fish is washed and cleaned. Season with salt and pepper, dip in lemon juice and put each piece individually in aluminum foil. Pour fat, and all fish are distributed in equal part from vegetables. Each fish is wrapped well in fthe oil and arrange in pan. Bake for 25-30 minutes in a moderate oven (180 C) and served hot.