Tenderloin tips

1 large round steak, cut into strips
6 medium potatoes, quartered
1 large onion, quartered
1 can cream of mushroom soup
1 soup can water
salt & pepper to taste
1 can of button mushrooms

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Mix the soup and water in a crockpot.
Add the steak and onions.
Cook on high for 4-5 hrs.
Add the potatoes and mushrooms an hour before it's done.
Season to taste.