Slice each chicken breast in half horizontally to create thinner cutlets. Pound them to about 1/2 inch thickness if necessary for even cooking.
In a shallow bowl, combine almond flour, Parmesan cheese, garlic powder, Italian seasoning, salt, and pepper.
In another bowl, whisk the eggs until well beaten.
Dip each chicken cutlet first into the egg, allowing excess to drip off, then coat thoroughly with the almond flour mixture.
Heat olive oil in a large oven-safe skillet over medium heat. Lightly spray the chicken cutlets with olive oil or brush them with olive oil before cooking.
Once the skillet is hot, add the chicken cutlets in batches, cooking for about 3-4 minutes on each side until golden and cooked through. Remove from heat.
Pour the marinara sauce over the chicken cutlets, then sprinkle shredded mozzarella cheese evenly on top.
Transfer the skillet to the preheated oven and bake for about 10-15 minutes, or until the cheese is melted and bubbly.
Remove from the oven and let it sit for a few minutes. Garnish with fresh basil before serving.