You have three good options for cooking meals at the campsite. Some campsites come with fire grates, make a fire and cook away.
We had a nice mess kit/cooking utensils that fit into the biggest pot. I spent the money and got a good set. We used it for years.
If you do not want to cook over a fire grate, a simple one burner stove powered by butane, propane, or gasoline is available. More deluxe is a two burner coleman stove. They come in suitcase packaging and you can stow other camping stuff in it when not cooking.
Even though we camped in the wilderness and had to portage and paddle our gear with us, I liked the coleman and the bigger cooking set. Good meals make for better camping. The ultra light mountain house type meals--were gross to me. Camping makes anything taste better, but if you start with good stuff, you are way ahead. Candles make good fire starters if you are going to have to build a fire for each meal. A bow saw provided the wood from downed and dried out trees.