I typically spend the week thinking about what I’ll make for main meals and then execute it all on one day. I make 8 full meals then 5 overnight chia oats and 3-5 portions of whatever meat was on sale at the store. It typically takes a few hours on my last day off any week (work a really weird schedule). I supplement any other cooking/more oats as the week progresses.
I only cook for myself so most recipes end up going in the fridge or freezer since they make more than 1 serving. I don’t like eating the same meal twice in one day but I don’t mind eating the same meal every day, so as long as I have 3 distinct meals in rotation each day I’m fine. If that number drops to 2 or 1 then I get cooking again.