Prep Time: 10 Min
Cook Time: 20 MINS
Heat olive oil in a skillet. Add the onions and cook for 1-2 minutes. Add peppers, mushrooms, salt and cook for 4-5 minutes, until softened and the liquid from the mushrooms has almost evaporated.
Add the steak – if using raw shaved steak, cook for 2-3 minutes, if using cooked leftover steak, cook for 1 minute. Add the stock. Cook for 1-2 more minutes.