Stroganoff Superb

1 lb. beef sirloin steak, cut into thin strips (budget: you can also use round steak cut into cubes)
3 Tbls. butter
1/2 cup chopped onion
1 (4 oz.) can sliced mushrooms, drained
1/2 tsp. salt
1/4 tsp. dry mustard
1/4 tsp. pepper
1 (8oz.) cream cheese, cubed
3/4 cup milk
hot, buttered noodles

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