In a medium pan, heat olive oil. Sauté onion and garlic until golden brown and remove from pan. Brown turkey in pan, season with salt and pepper if desired. Add onion and garlic back to the pan. Add all other ingredients except cilantro. Cook on low heat, stirring occasionally, for at least half an hour or until flavors develop. Prior to serving, stir in cilantro or use as a garnish. Serve with your favorite toppings, such as sour cream, grated cheese, hot peppers, etc. Serves 4 to 6.