Trim away any hard parts from the mushrooms, slice, and put to one
side. Heat the ghee or cooking oil in a heavy frying pan. Peel and
thop finely the onion and the garlic, and fry for 2 to 3 minutes
until they soften, but do not allow them to brown. Stir in the thyme,
sage, and ground cardamom.
Add the mushrooms to the frying pan, stirring constantly to ensure
that they are coated with the ghee or cooking oil. Sprinkle in the
salt, then squeeze the juice of the half lemon. Cook for a further
minute and serve.