Wow! This is a great combination of flavors. This Slow Cooker Italian Beef Roast is so simple to put together and it’s incredible. A couple of packets of seasoning, a chuck roast, broth, and some sliced onion, and it’s into the slow cooker. I am not usually big on using seasoning packed mixes, but I decided to make an exception for this one, and I was pleasantly surprised. The beef was nice and tender like it usually is from a slow cooker the seasoning blended nicely into the beef. The dry au jus mix and Zesty Italian dressing turned the juices into delicious gravy.