Preheat oven to 250 degrees. Spread pecans on a baking sheet and place in the oven until lightly toasted, about 5 minutes. (Keep a close eye on the pecans to ensure they do not burn.)Remove pecans from the oven. Add the pecans to a food processor. Coarsely chop and set aside.Heat coconut oil in a large pan over medium heat. Add onions, garlic, and celery and cook until onions are translucent, about 5 minutes.Add the pecans, cauliflower rice, sage, thyme, salt, and pepper and cook for 7 - 10 minutes, until rice is tender.Toss with parsley and serve hot. Add additional salt and pepper, if desired.