Is it worth the drive to mile marker 100?  i say yes.  I would eat here every day it was in the neighborhood.  Nothing fancy but exactly what dinner in the keys is supposed to be.  good food, good feel, good desserts.

http://mrsmacskitchen.clickforward.com/?adid-2E343B92-B097-442c-BFA5-BE371E0325A2=1906264&kw-2E343B92-B097-442c-BFA5-BE371E0325A2=mrs+mac%27s+kitchen

99336 Overseas Hwy, Key Largo