You haven't had a chance to respond with your length of stay/driving, but if I don't answer now I don't know when I will get back on the computer.
We've had 7-14 days stays over the last decade always staying off property. We usually rent houses, although have done condos/townhouses. Sometimes the kitchens are REALLY well appointed and sometimes they are not. Last house did not have any sharp knives; our tomatoes looked butchered.
Some of our rentals have had grills, some have not. Good to check into first.
Anyway -
We have driven and we have flown. I prefer driving because I can bring a LOT more stuff with us. Whether we drive or fly I bring spices (onion powder, s/p, garlic salt, cinnamon, celery salt).
For breakfast I sometimes go all out, if it is not a park day - pancakes, french toast, etc. I like to cook and my husband cleans it up. Other days we do English muffins with slices of ham and cheese for quick breakfast sandwiches. Instant oatmeal. Toast with butter and jam. Frozen waffles (remember to buy syrup).
Lunch - we are normally at the parks or just eat what was left over from dinner the night before.
Dinner - We eat pretty nice meals at home (we homeschool so I am home a lot of days) so on vacation we like to kind of keep it the same. I don't always like easy meals. But we have gone the pound of pasta (or frozen ravioli or bagged tortellini) and jarred sauce route. We will also buy garlic bread and a bag of salad and a tomato & cucumber.
Rotisserie chickens. Really easy accompaniment is tater tots and a bag of frozen veggies.
Here is what I do - I make a chart or calendar of the days we will be there.
I pencil in what we are doing each day.
I figure out how many days of breakfast we need. Lunch. Dinner.
Days we are eating dinner at the house but we will be gone all day are treated differently that days we will will be at the house all day.
Here is my sample from 2011. (FYI we drove down - left 5PM Friday and arrived 4PM Saturday. Stopped on way home. Meals penciled in reflect that.)
I then have a piece of paper and look at every item I have listed on the "menu" and decide if I want to bring the ingredient from home or buy it there. (My son has food allergies and some things are harder to find.) We bring a cooler and things that I pre-make (like the pulled pork) I make weeks or months ahead of time and have in freezer. They stay frozen on our 23 hour drive.
For that trip - there were 9 of us and we were there two weeks. I (foolishly) planned to go to both ALDI &
Walmart. The ALDI was a much further drive than I was happy with. But they carry many safe foods for my son. The more recent trip we just did everything at Publix, but I don't have that info on my computer.
Oil
Syrup x 2
Eggs x 5 dozen
Safe rolls sandwiches x 2 & pulled
pork
Ham slices
Mustard
Turkey
Swiss slices
Milk
Safe sausage x 2
Margarine
Butter
Strawberry jam
Oatmeal
Safe cereal
Raisins
Bacon
Lettuce x 2
Tomatoes x 12
Cottage cheese
Black olives x 2
Salsa x 1
Shredded cheddar x 1
Sour cream
English muffins x 3
Mac-n-cheese x 2
2 blocks of cheese
Mini bagels
Spray oil
Hard shells x 1
Bottled water 1 case
WALMART
Buttermilk
Safe bread x 3 loaves
Mayo
American slices
Juice OJ
Juice cranberry
Apples
Bananas
Grapes
Taco sauce
Wraps tacos and enchiladas 3
Yogurt - 24
Frozen broccoli
Pepsi x 24
Kraft ranch
BRING FROM HOME
Coffee
Tea
Sugar
Brown sugar
Cinnamon
Vanilla
Salt
Pepper
Combined dry ingredients for egg casserole
Combined dry ingredients for pancakes
Precooked seasonsed taco meat - frozen
Precooked enchilada filling - frozen
Precooked pulled pork - frozen
YES - there was a lot of planning - and we had to stop for groceries. But the execution of meals was SO easy. I posted the menu on the fridge and went from there.
This last trip in 2014 we did All Day Dining at SeaWorld, so that took two days of cooking off my plate entirely. And I brought SO much more from home. We have a large van and a super-huge cooler, so it was just easier to load it up with butter, jam, cheese, etc., at home.
PHEW - hope this helps.
In the nutshell -
1) make a list of meals needed (breakfast x 7, lunch x 2, dinner x 4)
2) decided what you want
3) make a grocery list based on what is actually needed for each item (imagine you are actually making that item and visualize, "Oh! I need oil for that!" etc.)
4) make a list and decide what you will bring with you and what you will buy there.