Baked Biscuit Wreath Dip

Preheat oven to 350°. Halve biscuits and flatten each one out, then roll into a ball and place in an oven-proof skillet seam side down. Arrange in a ring around the skillet. Brush biscuits with olive oil and sprinkle with 1 tablespoon Parmesan. In a large bowl, combine mozzarella, ricotta, spinach, Parmesan, mayonnaise, garlic powder, and salt and mix until combined. Spoon dip into center of skillet and sprinkle with red pepper flakes. Bake until warmed through, bubbly, and golden, 25 to 30 minutes. Serve hot.