Mozzarella nötköttsrullar

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1. 1
   Heat oven to 230C/fan 210C/gas 8. Season steaks, place a few basil leaves on each and split the mozzarella between them. Bring the sides of the steaks together to make an open parcel, securing the edges with a cocktail stick. If making up to a day ahead, cover and chill.
2. 2
   Heat a heavy-based roasting tin on a high heat, add the oil and brown the beef on all sides – this should take about 1 min in total and the meat will still be rare in the middle.
3. 3
   Add the peppers, their oil and the olives to the tin, pour over the vinegar, then roast for 2-3 mins for medium rare, longer for well done. Cover with foil and leave to rest for up to 5 mins. Scatter over remaining basil before serving.