I have a lobster mac and cheese using asiago cheese...really not Lent-worthy, it's very decadent.
Since we love seafood, we try to eat "lower" seafood, rather than delicacy-type stuff. I made crawfish etouffee' which is good ol' Louisiana mudbugs' tails cooked with onions and celery in a butter sauce. To tell the truth, this is not really a penitential dish either...the preparation is, kinda. At any rate, since we love seafood, I'm also giving up my dinner wine on Fridays. Been trying to walk 3 miles a day to Mass and back at lunch every day, but we have a major project culminating during Holy Week, and it's very hard to get away.