With my family, I seek out campsites that allow campfires. A fire is not just to keep us warm once the sun has gone down. We make good food on it too, which takes a little planning, but that's half the fun. Before I go, I might make pasta sauces, salad dressings, spice mixes and treats to take along and add to local produce - these days many campsites are near decent farm shops.
After the effort of travelling and pitching a tent, make your first meal something that just needs heating up. Italian meatballs and a tomato sauce made at home and then dangled over the campfire in a Billy can, then some pasta, is ideal.
One of the joys of camping is sitting around the campfire at night, chatting with a beer and some snacks. I make spiced nuts at home and bring them along, which are great to share with friends.
My children display boundless energy when they're in a field, so to slow them down for bedtime I make them some real hot chocolate.
Cooking outside can mean a relentless diet of meat. I balance our camping diet with vegetarian meals.
In the past I would never have dreamed of taking a pie to a festival and would have instead perused the stalls offering international cuisine. As I now have three children and can't afford to purchase festival food for everyone, I take a large festival pie to feed the family. It should do two meals if kept in a cool box. Something best eaten cold, like a lamb or pork pie.
I pack some meals that won't suffer too much if I can't keep the cool box super cool. Like quesadillas. filled with beans, salsa and cheese. To whip up lunch quickly, I make the bean mixture at home and then only have to assemble the quesadillas and heat them up.
Spruce up burgers and sausages over the campfire with homemade relishes and chutneys that you have brought along to camp.
Lay something on for a quick and easy lunch. For example, pasta served with pesto prepared at home.
A one-pot meal is good if you don't have many pans, limited washing up facilities or only one burner to cook on. You can include the carbs in the pot such as pasta or potatoes or eat it with bread warmed over the campfire.