When I "cook" in the villa it is a lot more use of convienience foods--things I really do not use at home, but do not hesitate to spend the extra $$ on when on vaction. I purchase the precooked bacon, brown and serve sausage, frozen pancakes, dozen eggs, bread, bagels, OJ, Juicy Juice, cream cheese, butter, milk and fruit. For any lunches or dinners (very infrequently) tomatoes, lettuce, luncheon meats, tuna, condiments, chips (potato and corn), salsa, precooked taco meat (tub in the meat or deli dept), precooked chicken strips or maybe a whole rotisserie chicken, flour tortillas, cheese slices, box or two of ice cream novelties(this was before the DP was available to us), and box of freezer pops. I usually bring the non perishables with me and add them to the regular food bill form April to July when we go. A box of this, bag of this or bottle of that doesn't really add to the bill. I bring ragu express and easy mac with me as well. Water and soda are usually purchased as well.
What do I do, well I try to stretch the things I can make with these ingredients. The bacon for example obvious for breakfast, but it can be used for BLT's, on chicken wraps (with the chicken, flour tortillas, letuce and tomato), chicken ceasar salads, tacos, nachos, regular sandwiches. I really don't like to cook on vacation I'd much rather take the break. If I were needing to save money or if I were not going to the parks, but rather enjoying the resort I might cook more.