Heat the oven to 200C/fan 180C/gas 6. Put the pepper, chilli and onion in a roasting tray, drizzle with oil, season and cook for 15 minutes. add the garlic and tomato, toss and roast for another 10-15 minutes or until everything is completely softened. Put the roasted veg in a blender with the almonds and bread and whizz to a paste then add the vinegar and 3 tbsp oil and whizz again. Season. Griddle (chargrill) the steak for 2 minutes each side for medium-rare. Serve with the sauce and chips if you like.