Grease baking dish and set aside. Core the apples. Using a food processor if you have one, dice the apples, onions, dates and celery. Mince the sage and rosemary.
In a large pan, heat the butter over medium high heat. Remove sausage from casing, and sauté in the saucepan until browned using a wooden spoon to break sausage into tiny pieces. Remove the sausage from the pan and set aside.
Add onion, celery, apple, sage, rosemary, thyme, marjoram, pepper and sea salt to the remaining fat in the pan and sauté over medium heat until the onion, celery, and apple begin to soften. Transfer to a large bowl.
Add almond flour, dates, and the cooked sausage to the onion, celery, and apple mixture.
Whisk the eggs and fold them into the mixture, combining all ingredients well.
Add mixture to baking dish and bake at 350F for 45 minutes - or until the stuffing is just set and beginning to brown on top.
Publisher's Note : Four servings will fit in a 9x9 baking dish.