01 - Preheat oven to 400°F. Lightly grease a baking dish large enough to fit the chicken breasts in a single layer.
02 - Pat chicken breasts dry and season both sides well with salt and pepper. Arrange them in the prepared baking dish. Drizzle with 1 tablespoon olive oil.
03 - In a bowl, combine ricotta, Parmesan, mozzarella, garlic, parsley, basil, onion powder, lemon zest, and chili flakes. Season with a little salt and pepper. Mix until well combined.
04 - Spread the ricotta mixture generously over each chicken breast, covering the tops evenly.
05 - Drizzle the remaining olive oil over the ricotta topping.
06 - Bake, uncovered, for 25–30 minutes, or until the chicken is cooked through (internal temperature 165°F) and the topping is golden and bubbling.
07 - Let rest for 5 minutes, garnish with extra parsley, and serve hot.