This recipe details preparing large batches of tender Italian beef by slow-cooking sirloin roast with Italian seasoning mix and pepper rings. The cooked beef is thinly sliced, submerged in the flavorful cooking liquid (au jus), and served generously piled onto hoagie buns with peppers for classic Italian beef sandwiches.
For the most tender beef, slice it very thinly against the grain. Using a meat slicer if available yields the best results. Ensure the sliced beef is returned to the cooking liquid (au jus) before serving to keep it moist and flavorful. This recipe is well-suited for a slow cooker for unattended cooking; follow manufacturer instructions for beef roasts. Consider lightly toasting the hoagie buns and adding provolone cheese before adding the beef for extra flavor and texture. Serving with spicy giardiniera can add a great kick.