Lobster Cobb Salad

2 Watercress

1 lb 454g / 16oz Cooked lobster meat - diced

1/2 lb 227g / 8oz Cooked bacon - chopped

1/2 lb 227g / 8oz Green beans - cut 1/2" pieces

2 lbs 908g / 32oz Tomatoes - diced (medium)

6 Hard-boiled eggs - separated into Yolks and whites, chopped

2 Avocados - diced

1/4 lb 113g / 4oz Roquefort cheese

1/4 cup 59ml Balsamic Vinaigrette - (see below) Balsamic Vinaigrette

1/4 cup 59ml Balsamic vinegar

2 tablespoons 30ml Sherry vinegar

1 tablespoon 15ml Dijon mustard

1 tablespoon 15ml Chopped shallots

1/2 cup 118ml Extra-virgin olive oil - plus

2 tablespoons 30ml Extra-virgin olive oil Salt - to taste Freshly-ground black pepper - to taste