If mine goes to the grocery store I know what he'll bring home:
Diet Coke
Ice cream-- at least two kinds
Lunchmeat
Hot dogs
Chips
Dip
and very little else
Then he complains if I don't "cook" a full supper.
Once I heated some chips in the microwave and gave them to him. I said, "I cooked what you brought home." He didn't see much humor in it. Ice cream doesn't do well in a sauce pan either.