Preheat your oven to 350°F (176°C).
Prepare a large baking sheet and line it with heat-resistant parchment paper. Set the sheet aside.
Whisk together the almond flour, baking soda, salt, and pepper in a bowl. Whisk until smooth.
In a separate bowl, whisk the egg with a small amount of water added in for moisture.
Add the whisked egg in to the dry ingredients bowl. Use a spatula, wooden spoon, or electric mixer to mold the mixture into a smooth dough. If it is too dry and cracked, simply add more water until it is smooth.
Move the dough to your baking sheet and roll it into a circular shape, no greater than 10 inches in diameter, or simply flatten it into the size of your baking sheet. Make sure the flattened dough is not too flat.
Bake it in your oven for about 15-20 minutes. The crust should appear golden-brown when done.
Remove it from the oven when done and set it aside. Wait a few minutes for it to cool.
Grab the egg bowl you used and whisk together the 5 whole eggs and milk. Whisk until creamy and smooth.
Apply a generous amount of pizza sauce to cover the entire crust. Spread the hash browns on top of the sauce and layer the cheese over them. After, pour your egg mixture over them all and sprinkle additional cheeses (if necessary).
Return the crust to your preheated oven and bake for an additional 12-15 minutes. The crust should stay golden-brown, the cheese should be melted, and the eggs should cook through when finished.
Remove it from the oven, let it cool, cut it in slices, and enjoy!