Combine water and yeast in a large mixing bowl.
Add 1 cup flour and salt to the yeast mixture; stir with a wooden spoon until combined.
Stir in garlic powder, onion powder, and cheese.
Add remaining flour, one cup at a time, stirring until well combined.
Cover bowl with plastic wrap and let rise for 1 hour.
In the meantime, add 1 tablespoon olive oil to an 8-inch cast iron skillet, and coat the bottom and sides of the skillet with the olive oil.
Lightly flour your hands and transfer dough to the skillet.
Shape dough into a round disk; cover with a towel and let stand 30 minutes.
Preheat oven to 400˚F.
Drizzle 1 tablespoon olive oil over the top of the dough and sprinkle with salt and parsley.
Score the top of the loaf with a knife.
Bake for 30 minutes, or until top is a golden brown.
Remove from oven and immediately turn bread out onto a cooling rack.
Let completely cool.
Cut and serve.