In a large non-stick skillet, add the coconut oil and heat over medium heat. Add the garlic and sauté 2 minutes to translucent. Add the bison and cook, stirring, for 8-10 minutes. Add the smoked paprika, fennel seeds, salt, pepper and rosemary and continue to cook, stirring occasionally, for another 5 minutes to allow flavors to deepen. Stir in tomato paste, spinach and ¼ cup water. Turn heat to low, cover and simmer to let thicken.