1) Preheat oven to 375
2) To prepare the crust, combine rice, garlic powder, onion powder, 1/2 tsp salt, and 1 egg. Spread the mixture into the bottn and up the sides of a 9 inch pie plate coated with cooking spray. Sprinkle the bottom of the crust evenly with 1/4 cup shredded cheddar cheese.
3) To Prepare the filling, heat a medium nonctick skillet over medium-high heat. Coat the pan with cooking spray. Add onion, celery, bell pepper, garlic, and sausage. Saute for 5 minutes. Spoon mixture evenly in the rice crust. Combine egg substitute, yogurt, salt, hot pepper sauce and egg whites. Stir with a whisk until well blended. Pour the egg mixture over the sausage mixture. Sprinkle with 1/4 cup shredded cheddar cheese.
4) Bake at 375 degrees for 30 minutes or until the center is set. Let stand 5 minutes before serving.