Sauté onion in coconut oil until mostly soft. Add turkey and brown. Add diced sweet potato. Cook 10 minutes. Add chili powder, smoked paprika, and garlic powder. Add minced garlic. Cook for 5 minutes. Add tomato sauce and fire roasted tomatoes with juice. Fill can with water. Add beef stock concentrate and ketchup. Simmer for 30 minutes or until sweet potatoes are soft.