Fill up a big slow cooker with tender and spicy beef, and let the crowd fill up their hoagies as they like. Stuff garlic cloves into small cuts in your beef chuck roast, then pour a jar of pepperoncini over and cook on low up to 8 hours. That’s it! Fill up your hoagie rolls with beef, top with provolone cheese and top with more pepperoncini for crunch. A great choice for Game Day or tailgate parties. Get the recipe for Pepperoncini Beef.