Honestly meal-planning has really lightened the load for me here - no thinking as I go round the supermarket, no clock approaching 5 and me having to figure out what we have in and what to make, no negotiations with the kids.
4 nights it's a set menu every week (Burger Monday, Meatball Thursday, Steak Friday and Curry Sunday), the other 3 nights we have 'something that looked nice at the supermarket', or something that we haven't had in a while - so Kedgeree, fishfingers, fish pie, pizza, stir-fry, occasionally takeaway, lasagne, shepherds pie, wraps, roast chicken or whatever - but planned ahead on Sunday so I don't have to think about it.
Leftovers or forage for your own lunch (DS1 likes to microwave some rice and have it with something, or something on toast etc) so I don't have to think about that either, and the big meals like meatballs, or lasagna or curry I freeze the spare in meal-sized containers, so most meals for most of the month I don't even actually have to cook, just defrost!