I keep a magic stove in the car all year, inside a coffee can, ~ 10 hot chocolates, 8 powdered cappuchino packets, and either lemonade mix or gatorade mix.
In the summer I just keep pop-tarts, cliff bars, and pre-packaged rice krispy treats.
In the winter I add in instant soup packets for more calories.
Thanks for the reminder- it is time to swap out the old stuff...
I don't keep spices in the car, though I will admit to grabbing every possible condiment when I at a good gas station for my office food supply....
That's pretty much my menu for my vehicle kit too. It's basically a brew kit with ready to eat snacks and stuff I can cook/re-hydrate with boiling water.
I do the same thing with condiment packs - grab whatever I can when I can. They're just so darned convenient. Though I try to use recyclable containers for short hikes and things I use more of, they get heavy on longer treks and they do take up more space in my pack.