01 - Preheat the oven to 400°F. Lightly grease a 9x13-inch baking dish with olive oil.
02 - Pat the chicken breasts dry with paper towels and season both sides evenly with salt and black pepper.
03 - Place the seasoned chicken breasts in a single layer in the prepared baking dish.
04 - In a medium mixing bowl, combine the ricotta cheese, Parmesan, half of the mozzarella, minced garlic, parsley, basil, oregano, and crushed red pepper flakes. Stir until thoroughly blended.
05 - Divide the ricotta mixture evenly among the chicken breasts, spreading it in a generous layer over each piece. Sprinkle the remaining mozzarella over the top.
06 - Drizzle the olive oil over the coated chicken breasts to promote browning.
07 - Bake for 25 to 30 minutes, until the chicken reaches an internal temperature of 165°F and the cheese topping is golden brown and bubbly.
08 - Remove from the oven, garnish with additional chopped parsley, and serve hot. Offer warmed marinara sauce on the side if desired.