T-Rays at 8th and Beech. Yes, it's in an old gas station. Yes, it's rough around the edges. The food is very good. Miss Carolyn's on 14th Street just south of the Walmart is pretty good. If you're staying south of the blinking light try the Parkway Grille (it's right at the blinking light.)
I love the Chesty's Creamed Chipped Beef served over toast available at FernanDeli for breakfast. 17B South 8th St, Fernandina Beach on Amelia Island, FL 32034. No financial association, usual disclaimers.