Mushroom and Prosciutto Flatbread Pizza

Ingredients

• Olive oil
• 2 large flatbread
• ½ cup chiffonade basil, divided
• Kosher salt
• Cracked black pepper
• 2 tablespoons minced garlic
• 16 ounces of your favorite marinara or tomato sauce
• 1 teaspoon minced rosemary
• 1 teaspoon granulated sugar
• 1 pint bella mushrooms, caps cleaned & sliced
• 12 slices fresh mozzarella
• 8-10 slices prosciutto
• 1 cup spinach
• Parmesan for grating