Tony Stark is an Emotional Eater
Evidence:
Scenario 1 - Gets back home form awful overseas experience, wants hamburger.
Scenario 2 - Pepper is upset with him, he brings her strawberries.
Scenario 3 - Pepper is upset with him and also he’s dying, attempts to make her food.
Scenario 4 - Is dying and becoming steadily more self destructive, found eating doughnuts, inside a doughnut, atop a doughnut shop.
Scenario 5 - Has near death experience in the middle of world ending battle for New York, immediately wants shawarma.
I rest my case.