I try to resist the urge to turn off the heat immediately before serving food because the pan is still hot for tens of minutes – all wasted energy. I try to turn off the heat ~10—15 min before the food is done cooking. Most people are impatient, addicted to convenience, lack self-control, and probably don’t even consider the wasted energy.

Electronic pressure cookers at least steer people toward using residual heat because when the cooking is done pressure protections block access to the food until pressure drops. OTOH, that’s due to temps being higher to begin with (above boiling).

Anyway, cooking food is rarely critisised as a significant climate factor. But you have to figure 8 billion people worldwide are wasting energy in this same way on a daily basis. Maybe it should be studied?