Mediterranean Stir

• 6 linguine
• 250 gr loose pack (frozen)
• 230 gr beef bottom round (boneless)
• 120 ml water
• 85 gr mushrooms (sliced fresh)
• 60 ml wine vinegar (red)
• 40 gr olive
• 28 gr butter
• 5 gr onion (minced dried)
• 5 gr cornstarch