Agree with lots so far. A few ideas for those who make it to the Beaches :-
Delicomb in Jax Beach - hole in the wall. Passionate about what they do. I'm super picky about coffee and theirs is awesome. Served in a large glass stein with organic cream. Creative breakfast/lunch with lots of vegan options. Kimchi on eggs. Mmmm. It's slowly getting discovered and the lineups are growing. Will need to move to a bigger place soon.
Two Dudes - Chef Ace French delivers amazing seafood and a great burger with great prices from a non-descript strip mall on Atlantic.
Azurea - Chef Ted Peters is creative and delivers delicious seafood. 5-star pricey, but a good treat.
Mojo's - pricing is very reasonable and they make an awesome burger (with bacon that is thick and crispy!), sweet potato mash and meat salad. Their barbecue is also solid but I can rarely get past the burger or salad.
Good Food Company - creative food from Chef Millard Cooley at reasonable prices. They even have a "discontinued" wine list, if you ask. We had an excellent bottle of French rose with lunch for $7.
Joseph's Pizza (thin crust) at Atlantic Beach is consistently outstanding, and so is DaVinci's Pizza, just down the road. Both have thin crust options, grind their own sausage meat, and let the flavors shine through without being greasy, bready, or drowned in cheese.