Leftovers Shepherds Pie Use up leftover bolognese sauce By Guest Contributor April 11, 2015 Beef Preparation Time Cook Time Servings0IngredientsLeftover bolognese saucehash brownsInstructions Step 1: Cook as many hash browns as you want. Step 2: reheat leftover bolognese sauce. Step 3: place bolognese sauce in bowl, top with cooked hashbrowns. Enjoy.