Heat oven to 375° F. Butter bottom and sides of a 9-inch glass pie plate. Firmly press hash browns on bottom and sides of pie plate. Bake 10 minutes.
Meanwhile, cook Italian sausage in a 10-inch skillet until browned. Drain fat. Combine cooked sausage, zucchini, red bell pepper, All Whites, milk and mustard in a large bowl; mix well. Pour All Whites mixture into crust.
Return to oven and bake 30 to 35 minutes, or until center is set. Sprinkle with cheese. Bake 1 to 2 minutes or until cheese is melted.
Total Fat 11g
Total Carbohydrate 10g
Dietary Fiber 1g