Preheat oven broiler.
In a small bowl, whisk together first 4 ingredients (Parmesan through chives); set aside.
Cover broiler pan with foil and lightly grease with oil. Sprinkle tilapia fillets with salt and pepper then place them on the
broiler pan; broil a few inches from heat source for 2 to 3 minutes then turn and repeat.
Remove from oven and spoon the reserved cheese mixture over the tops of the fillets; broil for 3 minutes or until toppings are browned.