Parent Company of Olive Garden and Red Lobster, Darden Restaurants Inc. (NYSE: DRI) said on Friday that fiscal first quarter earnings fell sharply as rising labor and food costs dented margin even as the restaurant operator’s biggest chain did not fare well. For the period which ended Aug. 25, same-store-sales at Olive Garden fell 4% while it dipped 5.2% at Red Lobster. Same-store-sales at LongHorn rose 3.2%. Overall, same-store-sales fell 3.3%. Both earnings and revenue missed analysts’ forecast. Total costs and expenses increased 9.6% to $2.07 billion. However, Darden backed its full-year guidance.