Don't know if you fly or drive...but, either way you CAN prep some meals at home, freeze what you've prepped and finish it while on vacation....very quickly! I make my homemade meatballs or meatloaf and freeze in Rubbermaid container or brown and crumble ground meat for chili, sloppy joes, tacos and freeze it. I've also precooked boneless chicken to use in chicken tacos, chicken salad, chicken cacciatore and...you guessed it...freeze it. I have a Thermos freezer bag, dimensions about 10"high, 10"wide, 14" long, which I then use as my carryon......as long as you have nothing liquid in the bag.....TSA will not stop you. I then order stuff from Garden Grocer to finish off my dinners.......jarred sauces, etc. (which I usually doctor up a bit with spices I've packed in labeled Ziplocs for easy carrying) I can have a sit down meal for six people on the table in about 30 minutes when at WDW with very little clean-up involved. We have a two hour to airport, arrive at airport two hours before our flight and a two hour flight......my stuff is usually still partially frozen when we arrive......the bag I have is rated for keeping items cold for 24 to 36 hours....since it's frozen when packed......7 hours later it's still mostly frozen.