Alonzo's Oyster Bar offers good seafood in a Key West casual setting. It's located on the ground floor of the A&B Lobster House at the end of Front Street in the marina. To start off your meal, try the steamed beer shrimp--tantalizingly fresh jumbo shrimp in a garlic, Old Bay, beer, and cayenne pepper sauce. Don't forget to dunk your bread. A house specialty is white clam chili, a delicious mix of tender clams, white beans, and potatoes served with a dollop of sour cream. An excellent entree is the pan-fried lobster cakes, served with sweet corn mashed potatoes, chipotle gravy, and roasted corn salsa. Alonzo's is the casual section of the A&B Lobster House; if you want to dress up, go upstairs for their "fine dining." The staff is cheerful and informative, and the service is very good.