Not saying it's "quality" but you might never seen a decent gas station food.
In Lithuania I often prefer gas station sub over local restaurants. In NZ some stations cater decent pies. Either of two is better than "chicken or vegetarian" option on many flights.
The U.S. has fresh food at some gas stations as well. Wawa is probably the model. But, just like any sub shop, they make one sandwich at a time, not 200 all at once.
In Lithuania I often prefer gas station sub over local restaurants. In NZ some stations cater decent pies. Either of two is better than "chicken or vegetarian" option on many flights.