1 - 2 teaspoons oil
1 small onion, finely sliced
Pinch of sea salt
1/2 lb (225 g) mushrooms, finely sliced (optional - if omitting, use extra onion)
1/2 lb (225 g) cooked lentils
1 - 2 tablespoons tahini
1 - 2 teaspoons miso or yeast extract
2 tablespoons chopped parsley
Stock from the cooked lentils to moisten mixture, if required