Portobello mushrooms are large, mature cremini mushrooms known for their meaty texture and rich flavor. They are typically brown and have a wide, flat cap that can grow up to six inches in diameter. These mushrooms are often used as a meat substitute in various dishes due to their hearty nature. Rich in nutrients, portobello mushrooms are low in calories and high in antioxidants, vitamins, and minerals. They can be grilled, roasted, or stuffed, making them a versatile ingredient in many recipes. Their unique taste enhances salads, sandwiches, and pasta dishes, appealing to both vegetarians and meat lovers alike.