Assuming you mean campsite camping, where you have access to shops, I would go for pasta and rice dishes. Spaghetti in a simple tomato, garlic and chilli sauce can be done on the single hob of a camping stove (cook the pasta, put to one side, and then make the sauce in the same pan). It's not haute cuisine, but it's tasty and filling. I've also done mac and cheese outdoors, and it was fine. Any sauce that has to simmer, curry, chilli etc, is perfectly suited to camp stove cooking.
As long as you have sufficient gas, there's no limit to what you can cook. Egg and stir fry dishes work well, and I once made risotto outside my tent. Boil the kettle to make stock then add oil to a saucepan. Sautee garlic, onion and mushrooms. Add arborio rice and stir. Pour in a good glug of wine and allow to reduce. Add stock gradually, and stir until it is creamy and the rice cooked. Stir in a handful of vegetarian parmesan style cheese and let it rest a few minutes. Serve with more cheese and the rest of the wine. Simple and delicious.
The only dishes I would steer clear from are those that require dried beans. These need soaking and then boiling for ages, so are not suited to campsite cooking.
If you mean rucksack camping, where everything must be carried, then it's dreid noodles all the way.