Maine Shrimp Salad

Name: Maine Shrimp Salad
Ingredients: 3/4 pound cooked Maine shrimp (or any other small shrimp); 1 tablespoon fresh lemon juice; 2-3 tablespoons mayonnaise (or to taste); 2 tablespoons finely chopped shallots; 2 tablespoons finely chopped celery hearts; 1 tablespoon finely chopped scallions; 1 tablespoon finely chopped flat leafed Italian parsley; 1 tablespoon chopped fresh tarragon; 1/2 teaspoon lemon zest; Pinch kosher salt, pepper (to taste); 1 tablespoon melted unsalted butter (optional); 4 split top hot dog rolls (new england style) or butter lettuce leaves, if you want to make the dish feel more healthy (optional)