Here is a recipe for low carb beef stroganoff that I got on another site. I haven't tried it yet, but plan to this weekend. Low carb and crockpot to boot, that's a deal!

Lo Carb Beef Stroganoff in Crockpot

2 lb round steak
1 1/2 C beef bouillon
1 tsp salt--1/8 tsp pepper
1/2 lb fresh mushrooms
1/4 tsp garlic salt
1 C sour cream

Cut steak into 1/4 in strips. Coat with salt and pepper. Drop into the
bottom of a crock pot. Mix garlic, salt, and bouillon. Pour over the
meat. Cover and cook on low for 6 to 8 hours or until tender. Turn
control to high. Add mushrooms. Cook on high 15 min or until slightly
thickened. Stir in sour cream. Turn off heat & serve.