Line a baking sheet with parchment paper and grease it lightly.
Place sweet potato chunks and almond flour in a food processor and blend until fine.
Add egg, sea salt, and garlic powder, and pulse until the dough becomes pasty.
Place in the refrigerator for 20 minutes.
Preheat oven to 400 degrees F,
Remove the dough from the fridge and pour it out onto the parchment paper, and flatten it out into a crust that's about 1/4 - 1/2 inch thick.
Bake in the oven for 30 minutes.
While the crust is baking, cook the bacon pieces in a large skillet over medium heat for 5 minutes.
Add the sliced onions with salt and pepper, and cook for 5 more minutes until the bacon is brown and crispy and the onions are soft. Set aside.
Once the crust is done baking, top with marinara sauce. Evenly spread the bacon and onion mixture on top, then gently crack 3 eggs over the pizza carefully so the yolks do not break.
Optional: Add cheese, if using.
Broil in the oven for 3-5 minutes until the egg whites are cooked through but the yolks are still runny.
Top with additional toppings, if using, then serve.