stir fry, you just simpley cannot go wrong. there are so many variations, it's ridiculous.
rice, veggies, and meat marinated in whatever flavors you choose (soy saaauuuceee! ginger, sesame, etc etc)
what else hmm, any kind of meat product can be paired with a marinade, and they have a WHOLE isle of marinades. baked chicken breast is way easy as everyones already stated.
you could also (sry this is the chicken talking) make your own chicken pot pie!
pie crusts from the fridge section, chicken, frozen veggies (carrots peas whatever from a bag), gravy, and if you like, potatoes, but that's a pain in the ass to do.... lol... anywho, cook the chicken and cut/tear it into pieces, whatever, and mix it with the gravy and veggies. put the pie crust in a pie pan, load it up with the pot pie stuff, and put the top on, making sure to seal it tight around the edges and poke holes in it! make it purdy!~ bake it until it's done (golden brown, not cold in the middle, whatever) and mow down son!
(anything you cook can be cooked anyway you like... just remember you don't need a recipe to make dinner)
chicken/pork/beef can be cooked in an oven, pulled (so it's kinda stringy) and mixed with BBQ sauce to make a delish sandwich filler! move over sloppy joe!
any left overs you may have from a get together or something, you can use in soups too, don't forget.
oi i'd go on for days if i didnt stop myself. i need to take my own advice and start cookin again lol...
ETA
oh and PLEASE don't forget to use your spices. salt pepper, spices, herbs, whatever you have, PLEASE don't forget the salt and pepper, and be careful not to over do it. it's a touchy subject in the kitchen world. my ex boss never put any salt or pepper in her food and i hate her for it!