We are going to be in the White Plains, NY area - Scarsdale, Larchmont, Mamaroneck, Harrison, Rye, Portchester, Greenwich, CT - over the Thanksgiving weekend and would like to know about really great places to have breakfast, lunch (how about a good corned beef sandwich on real NY rye), terrific coffee and/or wonderful baked goods. Only the best please. Not too upscale though. Places with relaxed atmospheres. Thanks so much!