We do omelettes (with tinned allsorts), super noodles, and Meg is right - in my experience you can bbq virtually anything!!!eg jacket potatoes, corn cobs, sausages, bacon, burgers etc etc
Mt kids are way less picky when we are camping (fresh air must make them starving)
Another good one is to get 2 of those tripod bread holder things that fit on top of the cooker rings to make toast - really quick and easy snack.
Have a look next time you go to the supermarket and you'll see loads of things that can go straight in a pan - complete meals in sachets and if you want to cook veg - buy ready chopped, washed, mixed in bags that you can simply boil.
Good luck. cooking outdoors is one of my favorite bits