I would stock up on easy stuff
Breakfast items, fruit, yogurt, cereal, juice, milk, breakfast bars, instant oatmeal( I like to add in some of the dry fruit, almonds slivers, or golden raisin) creamer, and real coffee.
Lunch or dinner - bread, mayo/ mustard, deli meat and cheese, maybe some premade sides, (macaroni salad, potato salad, coleslaw, pasta salad), chip and dips, crackers, cheese sticks or those baby bells, pickles slices and olives.
Must haves Water, soda, juice, and adult beverages
Suggestion, bring a collapsible or soft sided cooler for pool time, bring your own drinks and snacks this will save a lot.
192 has a ton of restaurants.. but they will be crowded as this is tourist lane. There are a lot of good spots to eat, one of our favorite and a lot of our friends love it, is O'Charley's located on Turkey lake Road, in the plaza are a lot of other options, including a Whole foods. If you turn left at the light ( sand lake and turkey lake) there's restaurant row, 2 Publix's on each side of the road, KeKe's which is a great breakfast and lunch spot. Out side of Disney Springs there all the chains restaurants, and they are super busy again this is a tourist area.
Groupon - you might want to see what's available sometimes they have some great deal,
With Disney Springs having so much to do and all the new restaurants, you might want to check out what they have to offer, plus the bus will take you to and from, so you can indulge in some adult beverages if you wish. Get a Landry's card sign up .. T-REX, RainForest, Yak and Yeti, it 25 but you get it back and if its the adults birthday month ( the adult who hold the card, must present the card and id) you get another 25.00.
Also think about sharing some meals, I think that the portions are quite large and more than enough to share.
Hope this helps out a lot.