Pre-heat oven at 400 degrees. Wrap Celery root in foil, place in a baking dish, bake for 60 minutes, until cooked and tender. Once cooked remove from heat and let cool. Score a Circle at top of celery root repeat for each, using a spoon scoop on the middle, forming a hollow centre, place in foil and set aside.
In a pot of boiling water, add cubed sweet potato, cook for 10 minutes, until soft and tender. Remove from heat and drain water.
Spoon filling mixture into each Celery root, drizzle tops with 1 Tbsp olive oil, wrap in foil and bake for 50 minutes, open the foil and bake for 10 minutes, until Celery root is tender.
In a dish, add Kale, top with stuffed Celery root and ready to serve with your favourite sauce.