List them here.

Like "amotekun" versus "ekun" kind of scenario.

Assuming "amotekun" is the derivative while "ekun" is the real thing when finances allow.

Beans was considered poor people's food too... Cause beans was our food back in the day.. Neighbours be like "ewa ni won ma n je" (it's only beans they eat).. But I thank God today lol.. And I still love my beans until this day..

yes, I think beans is mostly considered poor people's food although well to do Nigerians also eat it by choice. (Acquired taste perhaps, from the days of poverty )

Eba has to be mentioned.

Ogi(pap) with kulikuli

No food is poor mans food with this buhari tenure placing heavy tax on almost everything.

Indomie

Amala.

Akpu!!
In some places, N100 akpu will feed a whole family of 6.