2 lb. sirloin steak
4 tbsp. butter
1/2 tbsp. minced onion
1/2 lb. sliced mushrooms
1/2 pt. sour cream
Salt
Nutmeg

Pound sirloin or tenderloin very thin and cut into near finger-shaped pieces. Melt 1/2 the butter in a large heavy pan. Add onion, cook and stir until onion is tender. Add beef, cook quickly, about 5 minutes, browning on all sides. Set aside.

Saute mushrooms in remaining butter. Season with salt, pepper and nutmeg and add to beef. Add cream, heat and season delicately to taste. Serve over buttered noodles.