Preheat your oven to 350 F.
In a large skillet, heat the olive oil over medium heat. Add the minced garlic and sauté until fragrant, about 1 minute.
Add Italian seasoning, marinara sauce, almond flour, and chicken. Combine and cook for 5 minutes.
Into a 9” x 13” casserole dish that has been sprayed with non-stick cooking spray, pour chicken/marinara mixture.
Next, layer on parmesan cheese, mozzarella cheese, and finely crushed parmesan crisps.
Bake for 25-30 minutes, until casserole is heated throughout and the cheese is melted.
Once done, remove the casserole from the oven and let it cool for a few minutes before serving.
