Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
Combine ground chicken, grated parmesan, egg, garlic powder, oregano, salt, and pepper in a medium bowl until thoroughly mixed.
Place chicken mixture on the parchment paper and flatten into a thin circle approximately 10 inches in diameter.
Bake for 20 minutes or until the chicken crust is cooked through and the edges are golden brown.
Remove from oven and let the crust rest for 5 minutes to firm up.
In a separate bowl, toss the romaine lettuce and halved cherry tomatoes with the Caesar dressing.
Spread the salad mixture evenly across the top of the warm chicken crust.
Garnish with shaved parmesan cheese, slice into wedges, and serve immediately.