I ate an instant oatmeal packet the other day and couldn't believe how sweet it was. It was actually kind of tasty so I get where you're coming from!
The "crappy" food I like, if you consider it a food, is light, domestic beer. My friends all like dark, hoppy, expensive, "good" beer so it's kind of a joke among us. Not that we are such big drinkers but I am definitely the cheapest date of the bunch!