What’s the best road food?

on a long tow - Denny's or Waffle House.

I always look for something local where I can sit down and get good refills and probably has a clean restroom.  I also avoid things that might upset my stomach.  My best stops were between Dallas and San Antonio where my parents live like the Monument Cafe in Georgetown.  I need to find new stops now that we moved.  Local, good food, good service, clean restrooms and real food are my decision points.  I avoid fast food at almost all costs.

I took the lead photo, so you can maybe guess my reply here.

My parents live in more rural part of the country, and my dad likes to ride his motorcycle. He made a book of breakfasts that he has eaten while out for rides. Always the same order, too: omelette, grits, biscuit and coffee. 

 Beef jerky.

beef jerky if I'm pre-packing and trying to avoid stops

popeyes or Burger King if it's delivered through the window

waffle House if I'm sitting down and so blessed as to have one on my route

Whataburger or Taco Casa are the usual places I eat when away from home. 

Both of those are probably mostly pertinent to Texas folks.

Applebee's.  You can get a weak, de-stressing beer while stuffing your face and being out of the car.  It's also usually good to sneak in a salad when you can on a trip of any determined length . . .

Chik fil a is reliable. Always good bathrooms. 
 

"cook out" when in GA/SC for the oddly affordable tasty junkfood

Taco bell rocks EXCEPT its absolutely impossible to eat it in a vehicle and not have it look like someone busted a taco bell pinata in my lap. 

Gotta have a party size bag of Doritos in the car for between stops.