String Beans Vinaigrette
["1 lb. fresh or frozen French-style green beans", "1/2 medium onion, finely chopped", "1 small garlic clove, minced", "1/3 c. grated Parmesan cheese", "8 oz. (small) Paul Newman's dressing", "2 Tbsp. tarragon vinegar", "1/2 tsp. salt", "1/2 tsp. black pepper", "4 plum tomatoes", "1/2 c. black olives or more to taste"]
["Drop beans in boiling water.", "Cook 6 to 8 minutes.", "Drain. Combine everything except tomatoes and olives.", "Toss and chill all day or overnight.", "Add tomatoes and black olives.", "Serve.", "Makes 4 to 6 servings."]
["green beans", "onion", "garlic", "Parmesan cheese", "tarragon vinegar", "salt", "black pepper", "tomatoes", "black olives"]