I have camped all of my life so I might not be the best one to give advice but I'll try. You're probably correct in thinking that the first time out is not the time to mess up ;-)
So, I'd advise complete hookups, easy, planned ahead meals and make sure you take her somewhere SHE will enjoy.
Camping or not . . . Men are from Mars, Women are from Venus. Good luck with that
Malinda