Denny's for breakfast, Lumberjack Slam is a must.
TGI's is far superior than the UK and pretty good value. Their ribs were bloody good.
Hard Rock had the best burgers.
I'd stick to basic food as the Yanks version of fancy wasn't very clever!
If you get the chance and want to drive to the coast for a break head to Anna Marie Island. The most stunning little island on the east coast. Beautiful sea and sand, Dolphins swimming by, truly unspoilt. Take something to get out of the sun if you go to the top of the island, it will be roasting.
Discovery Cove was excellent, the swimming with dolphins is very staged for you to buy pics and CDs afterwards, but they have a massive salt water area for you to swim in. That is something special.
Don't do too much, go to the parks later in the day when it's less busy. We went at 5pm and jumped on the rides.
Some many things to list!