French Dip Sandwiches

1 beef roast (any kind that boneless--as cheap as you can find!!)
1 or 2 pkgs. Italian dressing mix (like you'd make salad dressing with)
1 or 2 pkgs. Au Jus seasoning (in gravy section)
2-3 cups water (depending on how much au jus you want for dipping)
Sandwich rolls

Place roast in crock pot. Sprinkle with Italian seasoning and Au Jus packets (I use two of each if it's a bigger roast, and one of each if it's smaller). Pour water over all and stir seasonings into the water. Cook roast in crock pot on high 6-8 hours or until tender enough to shred with a fork (I usually flip the roast over at least once to cook evenly in liquid). Shred meat, Serve on any kind of rolls, with Au jus on the side for dipping.