Palm Springs is many things to many people, but a bastion of fine eats is not one of them. Recently, though, restaurants like the ultramodern Workshop and the frisky farm-to-table spot Cheeky’s have had us looking forward to mealtime as much as pool time. Think it’s a mirage? See for yourself during Palm Springs Restaurant Week, which kicks off tomorrow, May 31, when more than 70 area eateries will be offering discounts. Proof that desert dwellers cannot subsist on date shakes alone.