Writing about a culture or place or people you know very little about is full of tricks and traps. Often, it’s little things which even those who live there just don’t get. My son — who moved from South Africa to the UK was pointing the different attitude to different foods in the various countries.
Tinned fruit was a common element of desserts in South Africa. Indeed, tinned foods are quite commonly used. Tinned fish, on the other hand was definitely a very class linked thing. Using tinned fish was definitely a class-marker. If you were well-off, you would buy fresh fish (or if you were a fisherman), frozen fish was the norm, and tins of tuna or salmon or pilchards… you were poor. In the UK, it seems tinned fruit wears a similar marker, and yet tinned tuna is socially not a marker…
Or to give another example: in London, ordering wallaby marks the consumer being written about as willing to try the exotic, and well-to-do — whereas where I come from it marks you as ‘poor’ and ‘lower-class’ (we eat a lot of it. I shoot, so it costs a few cents a pound – and it is very good. I’m damned if I’ll let snobbery decide on my tastes.). I know people who will not touch it, because that’s what poor people eat, and it is important to them to be seen not to be that poor. The problem with these ‘subtle’ markers is they’re quite hard to pick up, even if you get a local to read it.
I gather that you have similar issues in diets even between states and towns in the US (beans in chili I gather is a death-trap). So: how about sharing a few ‘cues’ about social status from food that you have found. I gather green jello is something all Americans eat (GD&R).