Preheat your oven to 425°F (220°C). Place your pizza stone or baking sheet inside to heat up while you prepare the dough.
In a microwave-safe bowl, combine shredded mozzarella and softened cream cheese. Microwave in 30-second bursts, stirring in between, until smooth and fully melted (about 1-1.5 minutes total).
In a separate bowl, whisk together almond flour, baking powder, garlic powder (if using), and salt.
Add the dry mixture and the egg to the melted cheese. Stir quickly with a spatula or wooden spoon until it forms a sticky, stretchy dough.
Place the dough between two sheets of parchment paper. Roll out evenly into a 10-12 inch (25-30 cm) circle, about ¼ inch (6 mm) thick. Alternatively, wet your hands and press the dough out gently.
Peel off the top parchment paper, then flip the dough with the bottom parchment onto the preheated pizza stone or baking sheet. Remove the top parchment.
Par-bake the crust for 8-10 minutes until edges start to turn golden and crust looks set but not fully browned.
Remove from oven, brush crust edges with olive oil or melted butter, then add your favorite low-carb toppings.
Bake again for another 7-10 minutes until toppings are cooked and cheese is bubbly and golden.
Let the pizza rest for 5 minutes before slicing to help the crust firm up.