I have made another crock pot stroganoff that was delicious but I don't know where I got the recipe and I can't find it now. This one is truly easy.
one can cream of mushroom soup, diluted
one can beef broth
1 pound stew beef cut into 1" pieces
1 cup sour cream
The recipe called for 2 cups cooked noodles but I used 1.5 cups cooked rice, your choice.
Combine soup, broth and meat in the crock pot and cook on high for 3-4 hours then cook on low for 3-4 more hours. Stir in the rice and sour cream and cook on high for 20 minutes. I didn't think to do this until after noon so I browned the meat first and then just cooked it on high for the 4 hours and low for 2 more hours.
As I said it was a little bland, but marvelous comfort food.