UNION, NJ – Legendary actor Ed Asner, famous for his role as Lou Grant during the 1970s and early 1980s, was in Van Gogh’s Ear Cafe on Monday shooting a scene for an upcoming series. Series producer Margaret Fontana grew up in Union and graduated from Union High School in 1993.  “I was always involved in theater and television in high school,” she said.  She studied radio and television at Rider…