We are also staying off site. I am looking for more ideas on what food to buy and would love to see a list of things you made there and/or what you took into the parks! Sandwiches every day would get pretty boring. We are 4 people for the same amount of time. Please help!
Oh gotcha. First question is - are you driving or flying? If you're driving start stocking up slowly on some items 4-6 weeks before your trip and bring them with you. Just adding a couple items to your grocery bill every week can easily be budgeted into your weekly budget and cuts down on that "big" grocery bill for your trip. Some things you'd probably have on hand anyways and could bring.
So, one thing is to use Garden Grocers. Go in a few days before your trip and order your groceries and they'll deliver the food right to the house/rental for you on the day you arrive (you set the time), and it's all great shape. And prices really are pretty good (though their fresh fruit is a bit pricy).
So for breakfasts, we bought your basics: bread, English muffins, eggs, bacon, juice, milk, butter, PB and jam, coffee, a bowl of mixed fruit, cereal for the kids
For lunches, we bought stuff to make sandwhiches (which of course included the jam and PB and bread), but also deli meat, mayo, mustard. Since we spent the afternoons at the house relaxing, we normally ate lunch at the house, so we also bought KD for the kids, hotdogs and buns. A bit boring and routine of a lunch time menu, yes, but we didn't really feel like cooking "big" meals while on vacation, and honestly, we found the heat kinda sapped our appetite anyways (we went in June), so a quick hot dog or sandwhich was fine. For the days we packed a lunch for in the park, we packed sandwhiches.
For suppers we did basically did meat and salad: so hamburgers and salad, pork chops and salad, we BBQd steaks one night, chili and salad - I made a huge batch of chili so we could have leftovers for the next day. We bought premixed salad bags and dressing, and a cornbread mix. We ordered in pizza one night, and had the leftovers for lunch. So again, not huge variety but we were trying to save money and also keep the grocery bill down.
For snacks we bought granola bars, cheese sticks, fresh fruit (bananas, apples, oranges), crackers, chips etc... We typically took the granola bars, fruit and crackers into the parks for a snack. We bought oodles of bottled water from home (much cheaper in Canada), so we packed typically 6 bottles per morning. In hindsight though I wouldn't do that again, since it's heavy to carry. Instead I would just pack a couple water bottles and refill in the park. Makes for a lighter backpack.
Definitely invest in a backpack cooler. We used this one with these ice packs, both worked great:
http://www.amazon.com/gp/product/B003I7CLCC?psc=1&redirect=true&ref_=oh_aui_search_detailpage
http://www.amazon.com/gp/product/B001PTGO5A?psc=1&redirect=true&ref_=oh_aui_search_detailpage