Rebekah's Perfect Pot Roast

1 (2-3 lb) beef roast, I used Sirloin Tip

1 large onion cut into eight pieces

1 packet brown gravy mix

1 packet dry Italian dressing mix

1 packet onion soup mix

1 (15 oz) can beef broth

Place beef roast in crock of slow cooker.  Scatter the onion around the roast.  Sprinkle the roast will all three mix packets.  Pour broth over all.  Cook on low for 8-10 hrs or high for 4-6 hrs, until fork tender.