You want a couple of techniques, plus some ways to vary them, e.g.
pasta or couscous or bulgur
with
canned beans
and
2 frozen vegetables
Seasoned with tomato sauce & parmesan, or soy sauce, or curry (etc.)
Look at
http://markbittman.com/app/vegetarian-how-to-cook-everything-app-for-iphone-and-ipad/