I'm the cook in the house most days so I usually get things ready. Even when I left for a mom's weekend away, I made sure DH was stocked with cooked food for DS. While he generally knows what DS meals are like, he definitely looks to my lead on this one.
We usually tag team feeding if we're eating out, but more than less likely I can't enjoy my food until DS is set up with his plate (whether his own, or food from our meals).
Do you cook your LO's meals? Your SO? How about when you eat out?