Thin, cross-grain slices of leftover steak added to a basic stroganoff sauce makes for a quick meal with gourmet appeal. Most stroganoff sauces call for caramelized onion, mushrooms and sour cream. Add prepared steak slices equivalent to the meat requirement in a basic stroganoff recipe around the time you sauté the mushrooms. This will allow the meat to heat through and absorb some extra moisture before you add the sour cream. For a last minute flavor boost, include a teaspoon of ketchup (yes, ketchup!) and a pinch of nutmeg before serving. This is one meal that no one will guess comes from leftovers. It's that good.
If you need a flavorful and easy stroganoff recipe (whether you're serving leftover steak or not), we have a few that fit the bill.