Courtesy of Vitamin V this morning..........(www.vitaminv.ca) later is greater Ever tried to get fed after 10 pm in this city? Never again will you ruin a perfectly good evening of opera, ballet or film festing with a grand finale of 99 cent pizza. Elixir at the Opus Hotel launches its "Petit Plats" menu this month, served after 10 p.m. until closing, complete with guest DJs to keep the vibe running smoothly into the wee hours. Think lobster ravioli, mini steak-frites in bite-sized pieces (in case a knife and fork is just too much trouble this late at night), oysters, tempura, and white asparagus, each perfect little dish for $12 to $14. Warning: Beware the drunks at the back banquette-oh, was that us? www.opushotel.com