To keep this dish strictly keto, choose a sugar-free marinara sauce with no added sugar and check the label for total and net carbs, aiming for about 10 to 12 grams net carbs per cup or less. If you prefer a nut-free version, you can replace the almond flour with finely crushed plain pork rinds in the same amount, which will lower the carbs even further and yield a very crispy crust. Avoid adding too much sauce directly on top of the breading to help maintain the crunch; you can always serve extra warmed marinara on the side for dipping if your macros allow. Leftovers keep well in the refrigerator for up to 3 days and reheat best in a 350°F oven for 10 to 15 minutes until heated through and the cheese is melty again.