If you had Smore's it sounds like you had a camp fire. What about the Pie Irons that you cook food in and roast over the fire. Go to www.pieiron.com
and you will see what I'm referring to and there are recipes there. I'm sure you can adapt to low cal.
Make up some dishes at home, freeze and then take them in your cooler if you have use of a stove. Sloppy joes can be made with Morningstar Crumbies is you don't want to use Gr. Beef. Taco salad, taco's, tuna sandwiches, speghetti, salad. You just plan ahead and don't forget the fruit.
When we camp, I have my own kitchen in the RV so it's not difficult I just have to make easy things as there isn't a lot of space.