London Broil with Mushroom Sauce

1 1/2 lbs flank steaks 1 Prepare sauce before grilling steak:. 2 Melt butter or margarine in saucepan. 3 Cook onion and tomato in butter until tender. 4 Add[...]

1 (2 lb) london broil beef 1 lb sliced portabella mushroom 2 cups dry red wine 1/2 cup fresh parsley , minced 1 teaspoon crushed dried rosemary 3 cloves[...]