It really depends on your preference

Some people prefer knowing if it’s Sunday it will be meatloaf.
Others prefer to check the grocery sales ads for the week to see what is on sale, then sit down and build their menu for the week from the sales items.
Another thing I might suggest to you, since it’s you doing all the cooking is invest in a small crockpot, one with a lift out pot that can go in the dishwasher for quick clean-up to leave meals cooking while you are at work. These should be on sale like crazy this time of year.
I’d also suggest that maybe you spend one day a week doing make ahead meals that you could just re-heat quickly when you get home.
There are all sorts of cookbooks and websites that could give you ideas on this. Plus all of us could help you work out quick fix meals from just some basic cooking. First thing we would need to know is what won’t you eat? Seriously, there is no sense in us giving your recipes that say call for broccoli if you loathe broccoli (as my dh does).