In a quiet street in the medieval town of Martel, Adrien Castagné and his brother Romain are continuing the family tradition of growing walnuts and producing walnut oil. One of them manages the mill and orchards a few miles away (visits possible); the other runs this small bistro-style restaurant that serves good food but won't break the bank. The chef cooks up precise and playful bistronomy cuisine: faithful to the seasons, it makes the most of local produce, with dishes such as goat's cheese with apricot, fig leaf and hazelnut. The meal starts with the house walnut oil, served with bread, and you can sample wine from the estate by the glass.