Heat oven to 350 degrees. Spray 10 x 4 cm pie plate with nonstick cooking spray. Beat rice, chives and egg white with fork. Turn rice mixture into pie plate. Spread evenly with rubber scraper on bottom and halfway up sides of pie plate. Bake for 5 minutes. Cut turkey into small pieces. Sprinkle in rice crust. Beat egg and whites in medium bowl. Stir in cheese and onions. Carefully pour into pie crust. Bake about 45 minutes or until knife inserted in center comes out clean. Immediately run knife around edge to loosen crust. Let quiche stand for 10 minutes before serving. Cut into wedges. Top each wedge with a tomato slice.