3 to 5 lb. thick sirloin
1 c. ketchup
1 lg. onion, sliced
Green olives stuffed with pimentos, sliced
Sliced mushrooms
1/2 c. water

Pour ketchup and water over steak. Add onion slices and olives.

Bake at 425 degrees for 30 minutes. Reduce to 325 degrees and bake 45 minutes more. During last 15 minutes of baking, add mushrooms.