Preheat the oven to 175C/350F.
Cut the cauliflower into about 2/3-inch slices. Set aside.
In a bowl mix almond flour, grated parmesan, Italian seasoning, garlic powder, black pepper, oregano, paprika, and salt until well blended. Transfer the mixture to a flat plate and set aside.
Whisk together an egg with a pinch of salt and pepper and pour onto a flat plate. Dip the cauliflower slices into the egg on both sides, then press into the “breading” mixture (making sure it is coated on both sides). Place it on a parchment paper prepared baking sheet. Repeat until all slices of cauliflower are coated.
Bake for 15 minutes.
While the cauliflower slices bake, mix the sauce ingredients until fully combined.
Take the cauliflower slices out of the oven, add sauce and mozzarella cheese, and place back in the oven for 15 more minutes.
Take out of the oven and top off with fresh parsley.