In a large bowl, combine ground chicken, breadcrumbs, Parmesan, egg, garlic, onion powder, paprika, salt, and pepper.
Mold the mixture into 4 equal patties, about 1 inch thick.
Preheat a grill or skillet over medium heat.
Lightly oil the grill grates or skillet to prevent sticking.
Cook the patties for about 5-7 minutes on each side, or until they reach an internal temperature of 165°F.
While cooking, toast the burger buns on the grill until golden brown.
Assemble the burgers by placing lettuce on the bottom bun.
Add the cooked chicken patty on top of the lettuce.
Layer with tomato slices and your favorite sauce.
Top with the other half of the bun and serve hot.