This combo just works! My guests kept asking for the recipe

– 1 lb button mushrooms, wiped clean and sliced
– 1 tablespoon olive oil
– 1 teaspoon garlic powder
– 1 teaspoon dried thyme
– 1/2 teaspoon salt
– 1/4 teaspoon black pepper
– 1 cup shredded cheddar cheese
– 1/2 cup grated Parmesan cheese
– 1 cup heavy cream
– 2 tablespoon unsalted butter, melted
– 1/2 cup bread crumbs, for topping (optional)
– Fresh parsley, chopped, for garnish (optional)