Low-GL Snacks: Mushroom, tapenade & tofu mash

2 tablespoons olive oil
1/2 onion (60g) very finely chopped
50g tofu very finely chopped
150g well-flavoured mushrooms, such as brown mushrooms, fiels mushrooms, exotic mushrooms, or a mixture
2 rounded teaspoons black olive tapenade
juice of 1/2 lemon
freshly ground black pepper
1 tablespoon snipped chives

Heat the oil in a heavy-based saucepan, add the onion and cook until the onion is softened but not coloured. Add the tofu and cook, stirring, for 2-3 minutes. Add the mushrooms, stir well, and allow to cook gently for about 5 minutes, or until the mushrooms are soft. Stir in the tapenade, lemon juice and some black pepper. Add the chives.