Remove lobster meat from shell, leaving it in nice, large pieces. Devein and slice lobster tail into thin, workable slices; slice claws. Season with salt and pepper. In a small bowl combine butter, shallots, herbs, lemon juice and zest and mix well; season to taste with salt and pepper. Cut rolls in thirds and smear each slice with flavored butter. Assemble 2 triple-decker sandwiches with 2 layers of watercress and lobster slices in between 3 brioche slices. Serve with fried shoestring potatoes.
Yield: 2 servings