i voted taco bell.. but i usually go to mcdonalds when i have the munchies because it's right in my town. taco bell is in the next town from me, so i only go there when i'm REALLY craving it.
Honestly I like "making" my own food. Boxed mac and cheese, baking scones, the bagel bites, ect. I won't turn down anything, but I tend to opt for cheesey things or baked goods. But no cheez-its. EW, those are nasty as hell high.
Gas Stations are great... i mean you can't get 2 double cheese burgers and a bag of funyuns at a McD's or BK...