Portobello mushrooms are large, mature cremini mushrooms known for their meaty texture and rich flavor. They are typically brown and 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 provide essential vitamins and minerals, including B vitamins and selenium. They can be grilled, roasted, or stuffed, making them a versatile ingredient in vegetarian and vegan cooking. Their unique taste enhances salads, sandwiches, and pasta dishes.