Garlic Butter Portobello Mushroom Recipe

Bahan-bahan (4 porsi)

• 3 large portobello mushrooms
• 1 ½ tablespoons olive oil
• 2 tablespoons butter (divided)
• ¼ teaspoon dried thyme leaves
• 1 clove garlic (minced)
• 2 tablespoons Panko bread crumbs
• 1 tablespoon grated Parmesan cheese (optional)