Offer: magazine subscription
Try your first 5 issues for only £5 today and never miss our best recipes
Toast the bread, then spread with a little of the cream cheese.
Meanwhile, heat the oil in a non-stick pan and cook the mushrooms, stirring frequently, until softened. Spoon in the milk, remaining cheese and the mustard. Stir well until coated. Tip onto the toast and top with chives.