Ummm... well... we don't. I absolutely refuse to "cook" on vacation. Its my vacation too, and if I am cooking, I am not on vacation.
Last fall, we stayed at a condo on the beach on the East Coast of FL that had a full kitchen, and here's how we utilized it.
For breakfasts, we had coffee and juice, cold cereal or doughnuts and fruit, or yogurts and fruit, or bagels and cream cheese, or instant oatmeal, or some other combination of the above. We used the refrigerator, the toaster and the microwave, and the coffee pot.
For lunches, we made sandwiches from deli cold cuts, lettuce, tomato, mayo and mustard, etc, and fresh breads from the grocery store. We had chips, deli salads, etc. We also bought ramen cup-o-noodles, canned soups, etc, and once we made grilled cheese sandwiches. Several days we were away at lunch time and picked up drive-thru. We stored things in the fridge, used the microwave to heat water or soups, and used the stove once to make grilled cheese.
For dinners, we bought things that were either already prepared, like deli fried chicken meals (chicken, mashed potatoes and gravy, etc), or we ate out or bought take out or ate with family (we have relatives in the area). We wanted nice, hot meals, and no one felt like cooking on vacation.

That's just us though!