Grilled Portobello Mushrooms with Garlic Butter is a delicious and flavorful vegetarian dish. The meaty texture of the portobello mushrooms pairs perfectly with the rich and savory garlic butter. Grilling the mushrooms adds a smoky charred flavor that enhances their natural earthiness. This dish is easy to prepare and makes a great appetizer or side dish for any meal. Serve the grilled portobello mushrooms with garlic butter hot off the grill for the best flavor and texture.