Preheat oven to 400 degrees. Toss sweet potatoes with 2 tbsp oil, sea salt and pepper to taste. Place on parchment paper lined baking sheet and bake in oven for 20 minutes or until tender.
While sweet potatoes cook, add celery, onions, sea salt and black pepper with 2 tbsp oil to a large pan and cook until tender. Add turkey and saute until cooked through.
When potatoes are done, place them in a large bowl with turkey mixture and all remaining ingredients. Stir to combine and place mixture in a 9 x 13 glass dish and cover with foil.
Reduce oven temperature to 375 degrees. Place covered dish in oven for 20 minutes. Uncover and bake an additional 20 minutes. Serve and enjoy!