Think it depends on your living situation. I have been living alone for a long time, but was used to having lunch in cafeterias / restaurants and only cook on

Think it depends on your living situation. I have been living alone for a long time, but was used to having lunch in cafeterias / restaurants and only cook on weekends mostly. Over the last months of working from home, deciding to cook for myself ~90% of the time, it took me quite a while to figure out a good balance between being cost/time effective, having little waste as well as being reasonably diverse and fresh. E.g. what I have seen some times, that people food prep on Sunday 5x the same lunch to eat during the week, absolutely does not work for me. It is cheaper than having food delivered, but only if I don't count my own time. If I didn't actually like cooking or weren't reasonably good at it, I would order food most of the days.