I taught my mom how to cook better. She is really good now (Grandma was THE cook).
Books help a lot. The problem is there is so much choice - that is why I suggested Better Homes and Gardens Cookbook(It is so practical). Recipies abound on the Internet.
It is really worth your time to learn how to prepare healthy meals. It is a real skill. Start with one dish, perfect it and expand from there.
If time is an issue, frozen vegetables are your friend. Stay away from canned food if you are interested in health.
EDIT: Pasta is so much more than spaghetti. There are pastas mixed with vegetables and Alfredo type sauces. I even made a spectacular original with crab and shrimp and black mushrooms that my friends couldn't stop eating.