Preheat oven to 180°C/350°F/Gas 4. Line a 20cm/8in flan dish with the pastry and bake blind for 10 minutes. While flan is cooking, mix the cheese with the honey. Add eggs, lemon juice and half the cinnamon and mix thoroughly. Cover the flan base with walnuts and pour the mixture on top. Cook for 30 minutes in a preheated moderate oven at 190°C/375°F/Gas 5. Make sure the mixture is set and then sprinkle the remaining cinnamon on top.