aggie
Why does a man cooking upset you. ?
The OP isn't upset by the idea of a man cooking, but she would like a change from having the same not-very-exciting meal every Monday, a different not-very-exciting meal every Tuesday, and so on through the week.
One improvement would be to suggest an extension of the repeats to a fortnight, instead of a week, and get some other meals into it. If, as it seems, he is already cooking his entire repertoire, that would be your chance to add to it some of the things that YOU would like - the simple platter and the take-aways and so on.
Gousto and Hello Fresh do regular subscriptions for kits that include all the ingredients for interesting meals, with detailed instructions - and he would keep the detailed recipes, which means he could make that again in the future. Both of them have much reduced introductory prices so you could try one out and cancel the subscription if you decided against it. I haven't tried Hello Fresh, but Gousto's kits were excellent, even little sachets of the herbs and spices needed were included, and the meats and vegetables were absolutely fresh. Their settings are a minimum of two kits, once a fortnight, but you can cancel a delivery if you remember to do so a few days in advance (and if you forget, you get their choice instead of choosing them yourself! I know this from experience.) Each kit serves two, but I found lasted me for three meals, and most will freeze once made - that would introduce him to the concept of stocking the freezer with home-made ready meals to eat later.