Nacho Potato Skins

medium potatoes, such as russet (2 pounds)

Cooking oil, shortening, butter, or margarine

butter or margarine, melted

seasoned salt

Ground red pepper

co-jack cheese, cheddar cheese, or Monterey Jack cheese with peppers, shredded (1 cup)

Toppers, such as dairy sour cream, salsa, guacamole, chopped tomato, chopped sweet pepper, sliced green onion, sliced pitted ripe olives, or snipped fresh cilantro