1) Preheat oven to 375
2) Prepare the crust by combining rice, garlic powder, onion powder, 1/2 tsp salt and 1 egg. Spread the mixture into the bottom and up sides of a 9 inch pie plate coated with cooking spray. Sprinkle the crust evenly with 1/4 cup of teh shredded cheddar cheese.
3) Prepare the filling by heating a medium non-stick skillet over medium-high heat. Coat the skillet with cooking spray. Add onion, celery, bell pepper, garlic and sausage. Saute for 5 minutes. Spoon mixture evenly into prepared rice crust. Combine eggs, yogurt, hot sauce, and extra egg whites. Stir with a whisk until blended and pour over the sausage mixture. Sprinkle with the remaining 1/4 cup cheese. Bake at 375 for 30 minutes or until the center is set.