Preheat the oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Slice the chicken breast into even cutlets and pat them dry with paper towels to ensure the coating sticks.
Whisk the egg in a shallow bowl, and in a separate bowl, combine almond flour, parmesan, garlic powder, oregano, salt, and pepper.
Dredge each chicken cutlet in the egg wash, then press firmly into the almond flour mixture until evenly coated on both sides.
Arrange the chicken on the prepared baking sheet and drizzle with olive oil to help achieve a crispy texture.
Bake for 15 minutes, then remove from the oven and top each piece with marinara sauce and shredded mozzarella.
Return to the oven and broil for 2 to 3 minutes until the cheese is melted and slightly browned.
Serve the crispy chicken alongside steamed broccoli florets for a balanced and nutritious meal.