Why not make food in batches and then refrigerate or freeze? There are plenty of meals that take little time to make that can be done in big batches using fresh ingredients.
Like bolognese, other pasta sauce dishes. Loads of meat and rice dishes and so on. Then the meal just takes as long as it takes to boil some pasta or rice and leaves little mess.
I could do but I like to have something different to eat each night so one meal would be spilt over a couple of weeks.
Be a bit boring having the same thing all the time.