This Roasted Portabello Mushrooms Recipe with Balsamic and Thyme is an easy appetizer or side dish packed with rich, earthy flavor. Tender portobello caps are roasted with balsamic vinegar, garlic, fresh thyme, and Parmesan creating a dish that feels elegant enough for a dinner party but easy enough for any meal.
Clean the mushroom caps by removing any visible dirt with a damp paper towel, then remove the stems. Discard stems, or use them in a soup or stir-fry.
Mix olive oil, balsamic vinegar, garlic, and herbs together in a small bowl.
Arrange the mushroom caps in a deep baking dish or rimmed baking sheet in a single layer. Pour the marinade over the top of the mushrooms, making sure to coat evenly. Sprinkle the parmigiano cheese over the top.
Roast at 425℉ for 10-15 minutes, or until the desired doneness is achieved.
Garnish with fresh chopped parsley.
Notes
Clean the mushrooms gently before roasting. Use a damp paper towel or soft brush to remove dirt instead of soaking them in water, which can make mushrooms watery and prevent them from roasting properly.
Choose portobello caps that are similar in size. Evenly sized mushrooms will cook at the same rate and ensure each bite has the perfect tender texture.
Avoid overcrowding the baking pan. Leaving space between the mushrooms allows them to roast properly instead of steaming.