This recipe is courtesy of foodnetwork.com. I am posting here for safe keeping and others to enjoy. I made this the other night and my teenage daughter said "Mom, this is 'the bomb" mac and cheese." The only alteration I made from the original recipe is to add mustard powder (so you can omit if you prefer) because I have seen mustard powder used in other traditional mac & cheese dishes and I think it just adds a whole new level of flavor. Don't skimp on the lobster or the cheeses by using imitations or you might be disappointed. Enjoy!