In a small bowl whisk together the melted butter, minced garlic, thyme, 1 tablespoon of parsley, kosher salt, and black pepper. Drizzle the garlic butter mixture over the mushrooms, toss to coat evenly then spread them out into a single layer.
1/4 cup Unsalted butter, 4 cloves Garlic, 1 tsp Fresh thyme, 2 tbsp Fresh parsley, 1/2 tsp Kosher salt, 1/2 tsp Black pepper