Bistro Beef And Potatoes Maison

• 2 filet mignon steaks
• 600 gr microwave safe dish
• 190 gr potatoes
• 60 ml lowfat milk
• 45 gr butter-cheese mixture
• 28 gr butter
• 16 gr gorgonzola cheese
• 5 ml olive oil
• 1 gr thyme (dried)
• 1 gr pepper