Green Bean Salad
["1 (9 oz.) pkg. frozen cut green beans, thawed and drained", "1 c. sliced mushrooms", "1/3 c. chopped onion", "3 Tbsp. olive oil", "1 Tbsp. plus 2 tsp. white wine vinegar", "1 tsp. mayonnaise", "1/4 tsp. tarragon", "1/8 tsp. salt", "1/8 tsp. pepper"]
["In medium bowl, place beans, mushrooms and onion.", "In small bowl, stir together the remaining ingredients.", "Pour over vegetables and toss.", "Cover and chill until serving time."]
["green beans", "mushrooms", "onion", "olive oil", "white wine vinegar", "mayonnaise", "tarragon", "salt", "pepper"]