Make the Chicken Crust: In a food processor, combine the canned chicken, egg, Parmesan, oregano, pepper, and garlic powder. Blend until fully mixed and smooth.
Form Patties: Divide the mixture into two equal portions. Shape each into a thin, round “pizza” crust on a parchment-lined baking sheet.
Bake for 25 minutes or until the crusts are golden and firm to the touch. Let cool slightly.
Make the Dressing: In a small bowl, whisk together the mayonnaise, Worcestershire sauce, grated garlic, Dijon mustard, and lemon juice until smooth. Taste and adjust seasoning if needed.
Toss the chopped romaine with the Caesar dressing until evenly coated.
Place the salad on top of the warm chicken crust “pizzas.” Slice and enjoy immediately!