Line a sheet pan with non-stick foil.
In a medium bowl coat cauliflower pieces with egg white,
then pour on the almond flour, add one cup and coat, then add more if needed.
Place the coated cauliflower on the lined baking sheet.
Bake at 425° for 10 minutes or until the coating starts to get golden.
Turn the cauliflower over and add some sauce to each piece of cauliflower with a spoon.
Cook for 5 more minutes so the sauce gets heated well and the cauliflower continues to cook.
Top with mozzarella and parmesan cheese and bake until the cheese is all melted about 5 more minutes.
This dish is great served immediately and reheats well if you have any leftovers.