Like menhara daughter, like menhara mother.... Thanks for the chapter.
Beneath the gags it's understandable that Mikoto's Mom planned to be there considering before she was too absorbed in work becoming neglectful. So now she just wanted to make sure Mikoto never comes back to an empty home again. Also the bit about making dinner for them is a direct (over)correction to how it was shown back in the flashback of Ch. 10 where she used to just leave pocket money for them to pickup a meal instead.