For what I really cook (other than the bacon)...it's the vacation stuff we avoid in the themeparks - burgers, hot dogs, and TONS of sandwiches with smoothies (which now use plant based ice cream and juice/plant-based milk vs our dairy binge of old with all the fresh fruit and bananas and PB I buy

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We buy high end lunch meat, rotisserie chicken, tons of bacon, tons of cheese (shredded and sliced), lettuce, tomato, onion, mayo, ketchup, mustard, and pickles...and peanut butter, honey, all fruit preserves, plant-based butter, and dairy-free hazelnut spread...and eggs and sausage...and some high end rolls and loaves of white bread...
You'd be amazed how many different types of sandwiches you can make and make well if you just have a good stash. And the sandwich stuff easily tops dogs and burgers, too

...and most rolls into breakfast options...
If you have that kind of stash, add in tons of fruit (both fresh and prepared), a few prepared sides (coleslaw/baked beans for me and mac and cheese for the kids) and some salty snacks (plain potato chips are my fave - they can also top sandwiches)...you don't need much more than alcohol, milk, and coffee (and the aforementioned ice cream)...and some cereal boxes for kids

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And if you pour the kids their smoothies early...and then add vodka or rum to the grown ups ones...yeah, I've never done that...smoothies and sandwiches is a great vacation

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I already mentioned my "use it up" french toast

...I also have "use it up" smoothies by the end that are PB/banana/chocolate...and use it up burgers with whatever toppings we have left (do those last and have the sandwiches 1st

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EDIT TO ADD: When we eat our one meal out, we tend to avoid the sandwich/burger concept, even in theme parks...most of my kids now use the chance for a dairy load meal, while I tend to get a veg or hot protein meal. Last year in Busch Gardens, I shared a rib/sausage/chicken plate (made with the dairy free sausage) with german potato salad and a regular salad with my 2nd daughter, who also got herself a side of mac and cheese for our meal out lunch, while my other kids got pizza and ribs with mac and cheese

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