Although I can't think of a single example right now, often I read posts where people doctor up boring foods by adding extra ingrediants. That never occured to me until reading some posts on Chowhound.
I don't have anthing brilliant. I added some chorizo to some canned lentil soup that made it taste better. I just saw a terrific mole sauce at a Mexican market and thought I could probably pick up a rotissarie chicken and use that with the mole.
Do you have any enhancement tricks you use?