Preheat oven at 350°F if available.

Get the steaks wrapped around with bacon. Like a ring around. Hold it with the tooth sticks

Put a pan ( big enough for the four filets) on high flame. Add some oil and seal the filets for 40 seconds on each side.

Put salt and pepper on both sides of the filets and put them in an oven tray and into the oven. A secret for tender steaks is not to put salt until the very end or after they are sealed, salt makes meat hard. For meat lovers salt and pepper is just enough! :)

Meanwhile, on the same pan you just used, put the flame in high again, add some more oil and the chopped onion. Let it fry for about 20 seconds

Add the wine to make a "déglacé". French for (unsticking the rests of a meal from its cooking recipient with a liquid; water, wine, lime, etc)

After one minute low the flame a little and add the mushrooms in thick slices or chunks. Let them cook for three minutes.

Oops!! Don't forget to take the toothsticks out before you serve them! ;)