Heat oven to 375°F. Make pie crust as directed on box for One-Crust Baked Shell using 9-inch glass pie pan. Prick crust generously with fork. Bake about 8 minutes or until very lightly browned.
Remove partially baked crust from oven. Layer potatoes, asparagus, bacon and cheese in crust. In medium bowl, beat eggs, milk, marjoram and salt with wire whisk or fork until well blended. Pour over cheese.
Bake 45 to 50 minutes or until knife inserted in center comes out clean. Let stand 5 minutes before serving. Cut into wedges.