Okay, el padre has spoken, and requested something Hispanic "but not rice and beans" for the old Dad's Day Dinner (tonight, not tomorrow). When I mentioned a meaty meal, he seemed enthusiastic. My thoughts immediately turned, of course, to a Brazilian churrascaria-type place, but we've been, and I'd like to try something a bit different. Enter Argentina. Anywhere good and authentic to take Dad to tonight? We'd prefer Nassau, as they live there, and we are loathe to battle LIE traffic to go to Queens.