If being an American at Heart means liking Denny's, then I guess I never was one...
Being "an American at heart" is many different things to different people. Denny's is unhealthy food, but very tasty. That being said, much of the same stuff can be made at home in a much more healthy form.
Forty years ago, in the early years of the Reagan administration, the US economy was sputtering, and my min-wage-plus-commission job at the recycling company wasn't covering the rent, so I would drive a taxi on Friday & Saturday nights after the Navy got paid, (sailors used taxis a lot in those days). My usual shift was 9pm to 3am. After gassing up my taxi, turning it in, and doing the paperwork, I'd hit the Denny's downtown around 4am for breakfast. And at that time, in those circumstances, it was perfect. I could fill my belly with bacon, eggs, biscuits & gravy, and whatnot for just a couple dollars. Granted, the USD of 1982 was far, far stronger than the dollar of today, but still. Circumstances, eh? Where else was I going to go at 4am?
Speaking of traditional American comfort food, anybody else ever eaten at the big truckstop in Dalhart, Texas? Driving back and forth between Kansas City and San Diego, we always stopped there.