In a large heavy frying pan, heat the oil and sauté the onions gently until just soft. Remove the onions from the pan to a side bowl using a slotted spoon.
Add the meatballs to the pan and brown lightly on all sides. Add the carrots and onions and cook for 5 minutes more.
Stir in the turnips, potatoes and stock. Season. Simmer for about 25 minutes, or until the potatoes are tender, adding a little more water if the stew gets too dry.
Serve with vegetables, and Worcestershire sauce if desired.
Please note: this recipe has been created and uploaded by a member of the Tesco Real Food online community. Tesco does not test customer recipes so cannot accept responsibility for the content, validate the results or answer queries regarding them.