Tasty Italian Beef 1 (3 1/2 pound) beef roast, sirloin tip or rump roast 1 (12 ounce) jar Italian Giardiniera, drained 1 (12 ounce) jar pepperoncini peppers 1 envelope zesty Italian salad dressing 1 (10 ounce) can beef broth Place roast in crockpot. Mix remaining ingredients together, draining oil or water from giardiniera. (Use 1/2 jar of giardiniera and pepperoncini for a mild version.) Add all ingredients to crockpot. Cover and cook on LOW for 18 hours. Yes, that's correct - 18 hours! Meat will be very tender. Use a fork to pull it apart.