1Butterfly and flatten two chicken breasts. Drizzle with olive oil and season with garlic powder, onion powder, Lawry's seasoning, Italian seasoning, paprika, oregano, basil, cajun seasoning, salt and pepper.
2Sear chicken breasts in avocado oil for 4-5 minutes on both sides, until internal temp reaches 165°F.
3Rinse and cook spinach until wilted.
4In a bowl, combine room temperature cream cheese, chopped spinach, chopped chicken, 1 cup mozzarella, and ½ cup parmesan cheese. Mix well.
5Prepare Alfredo sauce: Melt ¼ cup butter, add minced garlic, 2 cups heavy cream, and 2 ounces cream cheese. Season with salt, pepper, and cajun seasoning. Stir in 1 cup parmesan cheese until thickened.
6Place some Alfredo sauce at the bottom of a baking dish. Fill cooked jumbo pasta shells with the chicken mixture and arrange them in the baking dish.
7Top with remaining Alfredo sauce, 1 cup mozzarella, and more freshly grated parmesan cheese.
8Bake at 375°F for 20-30 minutes, or until bubbly. Broil for 1 minute if desired. Garnish with fresh parsley.