Warmth 1 tbsp olive oil in a non-stick frying pan then add 1 sliced onion and cook dinner on a medium heat unless entirely softened, round 15 minutes, adding a shrimp bit of splash of water if it begins to stick.
Crush in 1 garlic clove and cook dinner for 2-3 minutes extra, then add 1 tbsp butter.
Once the butter is foaming a shrimp bit of, add 250g sliced mushrooms and cook dinner for round 5 minutes unless entirely softened.
Season every little thing neatly, then tip onto a plate.
Tip 1 tbsp straightforward flour into a bowl with a immense pinch of salt and pepper, then toss 500g sliced fillet steak within the seasoned flour.
Add the steak devices to the pan, splashing in a shrimp bit of oil if the pan appears to be dry, and fry for 3-4 minutes, unless neatly colored.
Tip the onions and mushrooms aid into the pan. Lumber 150g crème fraîche, 1 tsp English mustard and 100ml beef stock collectively, then jog into the pan.
Cook dinner over a medium heat for round 5 minutes.
Scatter with some chopped parsley, and abet with pappardelle or rice.