Preheat the oven to 350 F.
In a large pan, cook the onion and celery in oil until soft and fragrant.
1 onion, 2 large stalks of celery, 2 tbsp. cooking oil
Add the cauliflower and cook for 5 minutes before adding the garlic. Cook for another minute; then season to taste and remove from the heat. Allow cooling.
2 garlic cloves, 2 cups cauliflower, 2 tsp. salt
In a large bowl, mix the sausage meat and pecans with the cauliflower mixture, egg, salt, and pepper.
1 lb. sausage meat, 1 egg, ¾ cup pecans, 1 tsp. pepper
Transfer to an oven-proof dish and top with fresh thyme.
5-8 sprigs of fresh thyme
Place in the oven and allow to bake for 25-30 minutes.
Remove from the oven and serve.