Vinaigrette is generally thought of as a green salad dressing, however by adding diced tomatoes and chopped fresh herbs it becomes a fine sauce for roasted barramundi or grilled salmon. Vinaigrettes rank among the most versatile of sauces. Since the base ingredients are oil, vinegar and sometimes mustard, one can choose from a wide range of these ingredients to create a vinaigrette to suit the dish: lemon juice produces a lovely freshness that complements shellfish, while verjuice offers a soft finish with asparagus and artichokes.