Beef& Lentil Stew

• 4 mushroom stems
• 1 clove garlic (minced)
• 1 lentils (uncooked)
• 1 bay leaf
• 700 ml water
• 475 gr stewed tomatoes
• 450 gr beef (lean ground)
• 60 gr onion (chopped)
• 60 ml wine (red optional)
• 5 ml beef bouillon instant