In a medium bowl stir together rice, broth, and the Cajun seasoning. Let stand at room temperature for 10 minutes or until the majority of the liquid is absorbed.
Cut four large pieces of foil (about 18 inches) and four slightly smaller pieces of parchment paper (about 16 inches). Place one piece of parchment paper on top of each piece of foil.
Stir in the onions, bell pepper, and celery,
Divide the rice mixture evenly among your packets.
Top evenly with sausage.
Fold the long sides together and form a seam. Then roll the short sides up to form additional seams.
Refrigerate up to three days or freeze until time to go camping.
At the Campsite
Start your campfire or heat up your grill so that your heat source is ready. If using wood or charcoal, let the flames die out prior to cooking your food.
Place your foil packets over heat for 25 minutes, turning over at least once, or until the rice is ready.
Carefully pull the packets off and let them cool for a minute or two.
Either open up the seams and crush the foil into a bowl shape or empty the food into another bowl or plate for eating.
If you brought them, sprinkle chopped scallions over your cooked dish. We also like to add some hot sauce to ours. This is really tasty served with hot French bread and a fresh green salad if you are early on in your camping trip.