Recipes: Tossed salad with green goddess dressing

Preparation:    Preparation time: 10 mins Cooking time: 10 mins Serving: 8 Ingredients: 1 ripe avocado 1/4 c. fresh flat-leaf parsley 3 tbsp. fresh tarragon  1 tsp. lemon zest, plus 3 tablespoons lemon juice 3 tbsp. olive oil 1 small clove garlic 2 anchovy filets 1 (.75-ounce) bunch fresh chives, divided Kosher salt and freshly ground black pepper 3 heads little gem...