Spinach Dip Stuffed Mushrooms

Name: Spinach Dip Stuffed Mushrooms
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
Ingredients: Olive oil spray; 1 ½ pounds baby bella mushrooms (or larger white mushrooms for stuffing); Kosher salt; Freshly ground black pepper; 10 ounces frozen chopped spinach (thawed and excess liquid squeezed out); 4 ounces cream cheese (1/2 block ); ½ cup freshly grated parmesan cheese (plus 2 tablespoons for topping); 1 cup part-skim mozzarella cheese; ¼ cup chopped scallions (plus extra (optional) green for garnish); 2 cloves garlic (minced); ¼ cup light sour cream; 2 tablespoons Italian seasoned breadcrumbs (or gluten-free panko)