Yeah, those meals are pretty much crap. I agree that you dont have to be a great chef to plan your meals (and make them), but it does take preparation and time.
Do you have a grill (gas, charcoal, Foreman)? If so, I find that is by far the easiest way for me to prepare quick meals. Just throw some chicken breasts/fish fillets/an occasional steak on the grill and you are good to go. Marinating the meat beforehand is really simple, and they even sell marinades at the grocery store if you dont want to make your own. YOu can also make/buy grilling sauce to brush on the meat before and while its on the grill. Tastes great.
If you dont have a grill, you can always just bake or broil some chicken or fish in the oven. Pretty easy to do -- do a google search for some basic recipes.
Beyond meat, it is beyond easy to just pop a sweet potato in the microwave or oven. Its also pretty easy to cook brown rice: measure out 1 cup of rice and 2 cups of water into a pot. Turn it up to med-high and leave until the water is gone. Or just buy a rice cooker. Veggies -- salad, or buy other raw veggies. You could also throw asparagus on the grill which is delicious.
It does take preparation to eat well. This means buying enough food at the grocery store for the week, and planning out your meals. It also means buying some tupperware to bring pre-made meals with you to work/school whatever.
Like Ian said, it eventually will become a routine and much easier to plan your meals. At first it was hard as hell for me too, but I got used to it and it became a normal part of life.