Steak And Mushroom Ragout

• 8 black olives pitted
• 4 club steaks
• 2 garlic (cloves minced)
• 1 tomato (chopped)
• 1 watercress sprigs
• 180 ml beef broth
• 85 gr coarsely mushrooms (chopped)
• 60 gr onion (chopped)
• 60 ml dry wine (red)
• 60 gr at a time