Add the almond flour, Italian seasoning, salt, and pepper to a medium bowl and mix to combine. Lay the chicken pieces out on a cutting board and dust each side with the mixture, patting to help it stick.
Heat 1 Tbsp of olive oil in a large skillet over medium high. Add the chicken, cooking each side for about 3 minutes or until a thermometer reads 165º and the chicken is browned on each side. Set the chicken aside on a plate.
Add another 1 Tbsp of olive oil to the skillet and add the mushrooms, artichoke hearts, bell pepper, onion, and garlic. Sauté until the veggies are tender.
Stir in the marinara sauce, spinach, coconut milk, and spices. Add the chicken back to the dish. Allow it to simmer until the sauce thickens to your liking.
Serve hot, alone or over spaghetti squash or roasted veggies (I like eggplant & zucchini with this dish).