This Pi Day (Saturday, March 14), all Common Ground Culinary restaurants (Grassroots, Twisted Grove, Wally's American Gastropub, The Collins, The Macintosh) will be offering $3.14 slices of pie with the purchase of an entree (except at Sweet Provisions).  Each restaurant offers different pie varieties from Coconut Cream, Chocolate Mousse, Butterscotch Pecan, and more.  Or stop by their sweet shop, Sweet Provisions, in Scottsdale for a choice of a variety of pies, all for $3.14 on Pi Day.