We also like adding the flavor packets to water that you can get for free at CS locations. We transfer the water to a container first just to keep it cold and to keep it from spilling but of course that means each person needs to bring in their own water bottle. Caribiner clips work well for this.
I'd rather buy a food snack for the kids than a soda or bottled water and besides it's fun for them to choose a tasty snack they wouldn't have at home.
I remember the days of travelling with teen boys and their insatiable appetite. They ( and my two teen daughters) were required to carry their own food snacks but I brought in a few things too:
They packed:
cheese and/or peanut butter crackers
cheese sticks or cheese cubes and crackers
granola bars
ziplocs with homemade trail mix or granola mix
fruit
fruit roll ups or fruit gummies ( these are not very filling)
beef jerky
pretzels
pb or hummus packets to use with the pretzels
raisin boxes
cereal in a plastic container that they like to eat "dry" or we could buy a carton of milk
Cookies or brownies that don't crumble, or graham crackers
I packed in a small softsided cooler with ice packs, for example:
tortillas ( better than bread as they don't rip or get soggy and are less bulky)
ziplocs with cold shredded lettuce
plastic container with shredded cheese
cold cuts
we got mustard packets from the CS locations
voila...instant wraps that still tasted fresh
We tried to have our "evening meal" a few times at a TS restaurant around 4 pm or the last lunch seating. Usually the menu was very similar and less costly than the dinner one. Other than that it was CS meals. The girls could easily split a meal at Cosmic Rays or one of the burger meals at Pecos Bill- those burgers are HUGE and once you add cheese to the fries and mushrooms to the burgers, they are a filling meal. Stay back a bit and watch people go by with trays who have ordered one of these meals. We didn't and wasted a lot of food because we didn't know better.
Good luck. I'm sure the boys will help you to be creative and you'll do just fine.
