kay's beef stir fry

Gosh, we haven't had this for aaaaages - classic Kayosaurus beef stir fry. To be perfectly honest, I can't say it's planned and it's rebirth is due to a combination of two salient facts:

1. for some reason our salad crisper is full of peppers
2. I forgot to buy the key ingredients required for this week's experimental stir fry

Sometimes, the oldies are the best for a reason. And I'm not just talking about Kay.

sources
kayosaurus' beef and pepper stir fry - Black Book