Measure used in medical quality management whereby obvious or elusive causes that may lead to adverse outcomes or patterns of suboptimal outcomes are sought and analyzed to correct faulty processes.
1 Cut two pieces of aluminum foil, each 24 inches long, and set aside.  Toss the potatoes, onions, parsley, oil, garlic, salt, and pepper in a large bowl. Place one half of the potatoes in the center of one foil strip and fold the right and left sides of the foil in toward the center to cover the potatoes.
1 Bake the potatoes: You can bake the potatoes directly on the oven rack, or you can place them a few inches apart on a foil-lined baking sheet. 2  Bake the potatoes for 50 to 60 minutes.3  Flip them over every 20 minutes or so and check them for doneness by piercing them with a fork. Sprinkle the potatoes with salt and pepper: Generously sprinkle the potatoes on all sides with salt and pepper. 2  Prick all over with a fork: Prick the potatoes in a few places with the tines of a fork. 3  This allows steam to escape from the baking potato.