Mix the dry ingredients: In a mixing bowl, combine almond flour, psyllium husk, shredded mozzarella, and salt.

Add the wet ingredients: Mix in the egg and gradually stir in warm water until the dough is soft but not sticky.

Shape the arepas: Divide the dough into four portions, roll into balls, and flatten into discs about ½ inch thick.

Cook the arepas: Heat a skillet over medium heat, add butter or oil, and cook arepas for 4-5 minutes on each side until golden brown.

Rest and fill the arepas: Let them rest for a few minutes, then slice open and fill with desired ingredients.