I cook for myself actually, and there is a difference between wanting to be thanked for cooking and asking for people's opinion on the food. Asking for their opinion indicates that I want to see if the flavor/cooking method works, which is meaningless if I just end up cooking it the same way anyways.
I also see it as a sign of care when people cook different meals each day, not the same food day in day out. Thats because I as someone who cooks, would like the people who I cook for to enjoy the food, a variety of flavors and a variety of styles. Making the same food no matter how well made can't do that. People get bored after all.
Agreed; prompting for an opinion generally means that either something has change with the way a dish was prepared, that it's a new dish, or that it's something they haven't prepared for a time and want confirmation that they did it right.
It's not something a person would ask for a dish that they'd been preparing daily; even Loren who spent his life as an assassin knows that it is off (but doesn't know what to do about it).
Meanwhile Laila, being the demon lord, has no clue how normal people behave so she's basically reading off the "good wife" script. "Make meal, ask how it is, repeat" but this set of actions has broken down because she became fixated on a meal that people praised her for.
It's a fun little interaction between two very not "normal" people and it's kind of amazing that it's required this much explanation.