If you plan to eat out much at WDW, then you don't need to worry too much about kitchen type gear.
Our first tent trip to the fort we simply brought our tent, air mattresses with sheets and blankets from home, 3 coolers (1 borrowed), a lantern and flashlight, and an electric skillet. If you are a coffee drinker, you can bring an electric percolater or an electric tea kettle. A tea kettle is great because you can use it for so many things like hot cocoa, instant coffee, cup o soup, and oatmeal.
I usually organized it this way....
1) a large rubbermaid bin for our kitchen stuff - electric skillet, electric tea kettle, paper plates and cups, plastic forks and spoons, cooking utensils (don't forget the spatula for pancakes and eggs), aluminum foil, ziplocs, salt and pepper, plastic tablecloth, etc.
2) a small rubbermaid bin for every 2 people to pack clothes in. These are better in a tent because they are waterproof in case it rains, stack easier, and can be used as a table as well.
3) 3 coolers - 1 for foods that need to stay cold like milk (I usually start off with 1 frozen) and meat, 1 for drinks like soda and juice boxes (this one is going to be opened often) and 1 for things that need to be cold, but need to be accessed often.
4) a small toiletry bag for each person to bring to the bathhouse. In the camper you can share soap and shampoo, but if you all go to the bathhouse at the same time, you each need to have your own.
5) Of course don't forget the tent. Some people also bring a screen house to set up over the picnic table and to set up a kitchen, but we never did, we just put our kitchen stuff back in the tent when not in use. Of course we had a double dome tent with 2 entrances and used one for gear and one for sleeping in.
I hope this helps you. As you see, most of the stuff you should already have. And, as someone mentioned, tents are being clearanced out at
Walmart right now. Just keep an eye out for the right price. Don't rush. Borrowing one is also an option.
Happy Tenting!!