It was a busier than usual week for Helen J. Shen, the 24-year-old actress who made her Broadway debut last November alongside Darren Criss in the musical comedy Maybe Happy Ending. She’s in the middle of a grueling post-holiday performance schedule and on Monday she recorded the show’s original Broadway cast album. “Cast recordings were my gateway drug into musical theater,” she says. Throughout it all, she’s kept her energy up with Buldak ramen and leftover Christmas wontons ...