I enjoy cooking, but don't enjoy that it has to be done so often. So I do meal prep.

My current system is to do a big batch that would last me 4-5 days, and then double the portion and freeze half. That way, after a couple of meal preps and rotating through different types of meals, the freezer has a bunch of accumulated portions so I can just start thawing them and be on a more "lazy mode" schedule for a while where I just thaw, heat/microwave and eat. Cooking break of sorts.

Not minding eating the same thing several days in a row helps. Eating only one big meal a day helps too. Not really "OMAD", but my breakfast is almost the same thing: eggs, cheese, bread, banana, steak, in different combinations. Stuff that fills me up and won't leave me hungry 2 hours later. So I just worry about breakfast and the bigger dinner, and leave the rest for snacking. Never really bother planning or meal prepping a lunch.

Usually stick to doing recipes that optimize cooking equipment. E.g. I'll sometimes do 2 meal preps at once. Chop things up to roast in the oven, like chicken and veggies, and while its cooking, do an instant pot only recipe where I just throw things in and hit the button. If I'm doing a double batch, I try not to do two oven-heavy recipes.

Things get more difficult and time consuming if I need to eat a lot more than average (when bulking).

My system is nowhere near perfect and I'm always looking for improving, but that's where I am at the moment.