Arrange asparagus, 1 cup Swiss cheese and 2/3 cup French-fried onions in plate.
Beat eggs, milk, Parmesan cheese, flour, garlic powder and pepper in a medium bowl. Pour into pie plate.
Bake 30 minutes or just until center is set. Sprinkle with remaining 1/2 cup Swiss cheese and 2/3 cup onions. Bake 5 minutes more or until onions are golden.