Have done this a few times when camping in the mountains (I 'don't' cook at Disney

) I also do this at home lots of times
The main thing is having a freezer large enough to accommodate all your frozen items. Otherwise, it sounds like a great plan if you eat at the campsite. One dish meals like lasagne (if you have an oven) would make easy serving and cleanup (disposable plates, utensils, cups, etc.) and you only have one dish to wash - or none if you bake in disposable foil pans.