In large bowl, combine first four ingredients. In small bowl combine sour cream, mayonnaise, dill, lemon juice, salt and Tabasco. Fold sour cream mixture into lobster mixture. Refrigerate, covered, several hours. To Serve: Slice each roll in half horizontally. Top bottom halves with one tomato slice, Bibb lettuce leaf and 1/8 lobster mixture. Cover with top halves of rolls.

Variations: Any of the following may be substituted for lobster meat: 1 1/2 cups cooked, coarsely chopped shrimp, 1 1/2 cups shredded imitation lobster or 1 1/2 cup shredded imitation crab.

Tips: A one pound lobster tail yields 1 1/2 cups cooked, cubed lobster meat.