1 - 1 1/2 lbs. macaroni
1 sm. can mushrooms
2 - 2 1/2 lb. sirloin steak
1 bottle ketchup

Boil macaroni as directed and drain. Cut meat into bite-size pieces. Brown meat in butter.

In large saucepan, combine macaroni, meat, mushrooms and ketchup. Heat and serve.