1 pound knuckle and claw lobster meat, or 2 (1 1/4-pound) fresh lobsters*
1/2 cup mayonnaise
1 tablespoon lemon juice
4 warm grilled rolls (top split hotdog rolls work well)**
Finely chopped lettuce, for garnish
Melted butter, for dipping
*The easiest way is to buy lobster meat is already taken out of the shell at a seafood market. Otherwise, 1 day in advance, buy 2 lobsters, steam or boil them in salted water, and then cool and remove meat from shell. Save the lobster tails for another meal, or chop and mix with the claw and knuckle meat, making sure to take the cartilage out of the claw and remove the stringy parts of the claw meat. **Do not use a very bulky roll, or it will take away from the lobster flavor.