Spray nonstick flat-bottomed wok or large skillet with cooking spray; heat on medium heat. Pour about 3 Tbsp. batter into wok; tilt wok to spread batter into thin 6-inch circle on bottom of wok. Cook 1 to 2 min. or until centre of crêpe is set. Pour about 1/4 cup eggs over crêpe; cook 1 to 2 min. or until centre of egg layer is almost set. Sprinkle with 1/4 each
of the onions and coriander; press gently into eggs with back of spoon to secure. Cook 1 min. or until centre of egg layer is completely set; turn.