I don't think there is anything we love more than a seafood boil now. Start out with your 16 qt. stockpot half filled with water and a bag of Zatarain's Crawfish Shrimp and Crab Boil Bag. Bring it to a boil. Add corn on the cob, boil again, add potatoes (I just add two quarts of my canned potatoes), bring to a boil once more and add any seafood you would like and cook until done. Today we had crab legs, clams, shrimp, scallops and perch fillets. I would have loved to have mussels but they were out of those some crawfish would have been nice too but I haven't seen any in the stores here for a while.
Anyway, no matter what you put in it for seafood, it will be wonderful. We dip ours in butter (I like garlic powder in my butter).