The Kitchn: Flatbread pizza is perfect for informal dinner
1 pound cremini mushrooms
4 cloves garlic
2 teaspoons fresh thyme leaves
1 cup shredded part-skim mozzarella cheese, divided
4 tablespoons olive oil, divided
1/2 teaspoon kosher salt, divided
1/4 teaspoon freshly ground black pepper, divided
All-purpose flour, for dusting
Finely ground cornmeal, for dusting
2 tablespoons grated Parmesan cheese, divided
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