I'd do apps at Contemporary ... I'd attempt to arrive at California Grill (check-in desk is on 2nd floor) at opening and hope for a spot at the bar. The short rib wontons are my go-to's here (at the bar you can order a la carte whereas the restaurant is prix fixe). If not available or you don't want to start that early, the onion rings or French onion soup at the Steakhouse 71 lounge are great. I'd probably do a main at either Citricos or Narcoossee's in the Grand Floridian. The Enchanted Rose Lounge is worth a visit as well - truffle fries! And for dessert I'd do the bread pudding at Tambu Lounge in the Poly - though both Citricos and Narcoossee's have great desserts too. Tons of good options -- have fun!!