MONDAY -- Emilie Schindler, the widow of Oskar Schindler, will be honored at the Plaza in a program with Dr. Frank Field of WCBS-TV and with Rena and Louis Fagen, who were saved from the Nazis by the famous Schindler list. The dinner-dance begins with cocktails at 6:30 P.M. The evening will benefit Shenkar College of Fashion and Textile Technology in Ramat Gan, Israel. Dietary laws observed. Tickets, $500, from (212) 947-1597. Foundling Hospital Dinner