Grate the zucchini, carrots, parsnips, turnips, and swede. Finely dice the onion and potato, then thickly dice the celery.
Add all the grated and chopped vegetables to the slow cooker. Along with the rice, soup mix, powdered chicken shock, and vegeta.
Make a well in the center and pour in 1 liter of water. Mix well.
Once mix, press the lamb shanks down into the mixture and top up the water till it reaches the max level on your slow cooker.
Put on the lid and set to low and let it cook for 8 hours.
Once you reach the 6-hour mark, take the lamb shanks out and set them aside to cool. Give the mixture a stir and top on the water till it reaches the max level again.
Once cooled, tear off the meat into bite-size chunks and add the meat back into the slow cooker. Stir well and let cook for the remaining time.
Serve as is or with some cut up breadstick