MAKE THE FILLING: Heat the oil in a large skillet over medium-high heat. Add the garlic, ginger, scallion whites, and seafood seasoning. Cook until the vegetables start to brown, about 5 minutes. Add the turkey and cook, breaking up with a wooden spoon, until golden, about 5 minutes. Stir in the fish sauce and scallion greens and cook until the liquid is almost completely absorbed, about 5 minutes. Stir in the pineapple, cilantro, and lime juice. Remove from the heat.
SERVE: Spoon the filling over the hot cooked rice and serve with lime wedges and lettuce leaves to make lettuce wraps.