1 lb. beef sirloin steak, cut up
3 tbsp. butter
1/2 c. chopped onion
1 (4 oz.) can mushrooms, drained
1/2 tsp. salt
1/4 tsp. dry mustard
1/4 tsp. pepper
2 (8 oz.) pkgs. cream cheese, cubed
1 1/2 c. milk
Hot cooked noodles

Brown steak in butter in large skillet. Add onions, mushrooms and seasonings; cook until meat and vegetables are tender. Add cream cheese and milk; stir over low heat until cream cheese is melted. Put over noodles.