Ancient Egyptian kitchens were known for their innovative designs, and some of them incorporated built-in indoor mushroom farms. Mushrooms were considered a luxury food item in ancient Egypt and were often reserved for the pharaohs and the elite. These kitchens had specially designed chambers where mushrooms could be grown in controlled conditions. The Egyptians used mushrooms in various dishes, including meat stews, vegetable dishes, and bread. The built-in mushroom farms allowed them to have a constant supply of fresh mushrooms, enhancing the culinary experience in ancient Egyptian kitchens.