The stuff is awesome, and an essential ingredient to a bacon sandwich. Although, I'd go for worcester sauce on a shepherds pie instead.
+1 to that, although I generally use a pretty liberal hand with it while cooking the shepherds pie, so not as much maybe needed later.
Another note on Worcestershire, the offbrands (at least in the states) taste like garbage. You can buy name brand ketchup and offbrand ketchup and be underwhelmed by the difference, but the off-brand (non Lea and Perrins) worcestershire sauce I've tasted, well, I threw the stuff out, and that's saying something because I hate wasting food!