My DH and I are leaving on our adult only trip in about 18 days! You will have twinges of guilt, but they will be overshadowed by the nice relaxing pace you can take. Or, if its your thing, a faster pace. We tend to use the time alone to eat at the nicer restaurants but I have this list of all the bars that serve some form of meal. You might find bar/appetizer hopping to be a fun event that you couldn't do with your kids!! Have fun!
California Grill lounge full menu available
Tune In Lounge (adjacent to Prime Time Café) full menu available
Jiko full menu at bar
Raglan Road full menu at bar
Gurgling Suitcase full Olivias menu available at bar
Rainforest Café full menu at bar
Yak & Yeti full menu at bar
Citricos Full menu is available at counter/bar seating inside restaurant. I believe, but am not sure, that you can order Citricos dishes from Mizners lounge.
Rose & Crown pub menu (cheese and fish & chips available at the bar)
Flying Fish full menu at counter seating
Turf Club appetizer menu at bar
Tambu Lounge appetizer menu at bar (selections from Kona)
Territory Lounge appetizer menu at bar
Marthas Vineyard Lounge appetizer menu at bar
Rix Lounge appetizer menu at bar
Bluezoo bar/café menu (limited selections, no desserts)
Crocketts Tavern food available
River Roost appetizer menu at bar
Crews Cup Lounge appetizer menu at bar
The Wave - appetizer menu at bar