We have these restaurants picked out for our week in Tahoe June 2-9: River Grill, Lakeside Beach Grill, River Ranch, Garwoods, The Beacon, and Sunnyside Lodge. They were picked mostly for the lakeside views. Can you tell me how dressy or casual they are? Which one would be best for a birthday dinner? Also, any suggestions for lunch places? We are eating at Firesign one day. Thanks!!