In a small bowl, whisk the eggs, onion and water. In a small skillet, heat butter until hot. Add egg mixture; cook and stir over medium heat until eggs are partially set.
Place the crust on an ungreased baking sheet. Sprinkle with about 2 tablespoons cheese and drizzle with about 2 tablespoons pizza sauce. Top with scrambled egg mixture. Drizzle with remaining pizza sauce; sprinkle with remaining cheese. Top with pepperoni.
Bake at 200° for 10-12 minutes or until crust is slightly crisp. Let stand for 5 minutes before serving.