Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a bowl, combine ground chicken, grated parmesan, egg, garlic powder, oregano, salt, and pepper until uniform.
Transfer chicken mixture to the parchment paper and flatten into a 10-inch round, approximately 1/4 inch thick.
Bake for 20 minutes until the crust is golden brown and reaches an internal temperature of 165°F.
Remove from oven and let the crust rest for 5 minutes to ensure structural integrity.
In a separate bowl, toss romaine lettuce with Caesar dressing and croutons.
Distribute the salad evenly over the baked chicken crust.
Garnish with shaved parmesan cheese and serve immediately to prevent the crust from softening.