Cooking for one is not much fun, and hard if you're at the end of a long day. It's great if you are organised enough to be prepared in advance and freeze stuff, but if not, my tip is the packets of individual frozen vege mix (crap can't remember the brand) a bag of frozen mashed potato ( it's quite good, much better than powdered stuff) and some sort of frozen chicken/salmon/whatever. Together, it makes a healthy meal and only takes about 2mins for each in the microwave.
hhaha i already use these...call me slack but it saves so much time and pots and pans

just rang DP and told him im gonna be cooking up some stuff to freeze...hes like, oh i will cook one or two nights a week....lol as if...and if he DID....it probabyl wouldnt be edible anyway! LOL poor thing, hes trying i spose