Creating Twice Baked Potato Breakfast is straightforward when you follow these simple steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C).
2. Bake Potatoes: Scrub the potatoes, prick them with a fork, and bake directly on the oven rack for 45-50 minutes until tender.
3. Cool Potatoes: Remove the potatoes from the oven and allow them to cool slightly, about 10 minutes.
4. Prepare Filling: Once cool enough to handle, slice the potatoes in half lengthwise. Scoop out the insides, leaving a thin layer of potato in the skins for structure.
5. Mix Filling: In a bowl, combine the scooped potato flesh, eggs, cheddar cheese, sour cream, milk, garlic powder, salt, and pepper. Mix until well combined.
6. Add Bacon: If using, fold in the cooked and crumbled bacon.
7. Refill Skins: Spoon the filling back into the potato skins, mounding it slightly.
8. Bake Again: Place the filled potatoes back on a baking sheet and return to the oven. Bake for an additional 15-20 minutes until the filling is set and slightly golden.
9. Garnish: Remove from the oven and let them cool slightly before garnishing with chopped green onions, if desired.

These steps will guide you in creating this incredible breakfast dish effortlessly.