Step 1 Put the potatoes into a pan of salted cold water. Bring to the boil and simmer for 10-15 minutes, or until just tender. Add the peas and beans for the last 2 minutes of cooking. Drain then rinse in cold water. Slice the potatoes in half and put into a serving bowl with the peas and beans.

Step 2 While the potatoes are cooking, put the steaks into a shallow dish with the oil, then rub in the pepper and a sprinkle of salt.

Step 3 Heat a frying pan over a high heat until hot, then add the steaks. Fry for 2 minutes on each side for rare (3-5 minutes on each side for medium to well-done, depending on the thickness of the steaks). Remove from the pan and set aside.

Step 4 Put the mustard into a bowl with the crème fraîche and mix together. Thinly slice the steaks and add to the serving bowl with the tomatoes, parsley and mustard dressing. Toss together and serve.