A Long Island lunch lady served up a big-money win on “Wheel of Fortune” that left her lapping up some $65,000 in prizes, including a brand new Toyota truck, a week-long tropical vacation and a year’s supply of sweet treats. Single mom Katie McCann emerged as the winner of Tuesday night’s fittingly food-themed episode called “Living the Sweet Life” — and she credits her career as St. James Elementary School cafeteria’s lead service worker for giving her an edge. “It certainly gave me the upper