Things that make food taste good: fat, sugar, salt. Things that make your body work good: kale. This is (more or less) the premise that led French researchers to build a device that makes healthy food taste better by adding junk food smells to it. (Although, finish that braised kale with a hit of acid, like sherry wine vinegar, and I promise you that you will experience an immediate tastiness boost. *Not science, but basically.)
Source: Make Healthy Food Taste Better By Making It Smell Like Junk Food, Scientists Say