Learn How to Cook.
You can also spend less on food if you learn how to cook. Not only will that keep you from heading to the drive-thru as often, it can also help you avoid overpriced, processed foods and make the most of the ingredients you do buy.
If you don’t know where to start, I recommend bypassing the grocery store and heading to the library first. You can find all sorts of cookbooks geared toward beginners. My personal favorite way to learn now to cook is to sign up for a two or three day Chef Training Class. My favorite is The Viking Cooking School.