When selecting food for camping, you have one main advantage over backpackers, and that is that you will have more space. So therefore you have more options open to you, when planning your trip. There are two trains of thought when planning meals for a camping trip, and they are, to cook or not to cook!
If you wanted some easy good food for camping without having to cook, then you might want to go down the dehydrated/freeze dried meal route. There are companies (such as Mountain House) who produce these meals and can be ordered online. They offer a wide variety of choice to the consumer from main courses to desserts that are very calorie controlled, nutritious, and filling at the same time. So these would fit the bill perfectly. The downside is that they are quite expensive to buy and if you were planning a lengthy trip, then you would probably need to take out a small mortgage to purchase the food.
Another alternative for not cooking when camping are MRE