I'm not rolling with the highest culinary standards I'm the first to admit it. I can do all my cooking Sunday and have no problem eating it out of the fridge for the week. Its really Monday through Friday I need to have pre-cooked food on hand. Mainly protein.
I'm not talking anything too fancy just brown up a bunch of ground beef, cook a bunch of chicken breasts and maybe something else like a turkey breast or some other roast. Make a bunch of hard-boiled eggs etc.
If you like cooking and want to get fancier there is tons of information on the web about bulk cooking. Apparently a lot of housewives are into it.