The Brown Mushroom, also known as chestnut mushroom due to its colour, have a strong taste and look like a darker version of the button mushroom. They have pink to dark brown gills. Chestnut mushrooms are served raw or cooked. They are very versatile and can be included in salads, pasta dishes, sauces, quiches, casseroles, soups and omelettes. Mushrooms are best stored in a paper bag in the fridge for up to 3 – 5 days. Do not store them in a plastic bag because they will sweat and quickly spoil.