Let's go back to the part about "walking distance from the Florida Mall."
DO NOT walk in that area. It's on OBT and the area becomes more unsafe with each passing day, it seems. Stay in the mall and find something there you can live with for a meal.
Personally, I don't like Five Guys at all, but that's just me. I find their fries/chips to be soggy and kind of gross. I know many people do like them though.
I'd say give Buca a try. You'll have a wider variety of choices. I've only had a bit of a pizza from California Pizza Kitchen. It wasn't bad!