A couple of places we enjoyed for laid back food, and some fun:
Stans Idle Hour
221 Goodland Drive W
a fun time with music on a Sunday
Captain Brians Seafood
599 S. Collier Blvd.
Marco Island, FL.
decent lunch: raw bar, grouper sandwich, crab, chowder, lobster roll.
You have to try the Bayview Restaurant and Starbar at the Esplanade. There is a great outdoor bar that has happy hour 4-7 and daily drink specials. Great atmoshpere and the restaurant has a great menu to either snack or have a good dinner. Definitely the "happening" place. I even hear they have live music Thur, Fri, and Saturday - all summer!!!!