Try this homemade Leftover-Beef Stroganoff recipe the whole family will love. Made with butter, leftover roast beef, onion soup and mushrooms. Easy step…
This Leftover-Beef Stroganoff relies on simple, everyday ingredients such as butter, leftover roast beef, sliced mushrooms, undrained and egg noodles. It comes together quickly and makes 4 servings, at about 641 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.
Updated Jun 30, 2026