My wife is the same way, roughing it means no room service.
After camping with my son's Boy Scout Troop for the past 8 years, I just need a tarp, hammock, and a coffee pot. For food, just a fishing pole. The good thing about Texas State parks, is that you can fish from the banks, or a pier if available, with no fishing license required.
If you haven't already, take a look here: http://tpwd.texas.gov/state-parks/
They give you the locations, amenities, and some even have customer reviews regarding the best times to go etc.