Put all the ingredients for the meatballs in a bowl, season with salt and freshly ground pepper and mix the mince thoroughly. Leave the mixture to rest for 15-20 minutes.
Meanwhile, mix the ingredients for the dressing and season to taste with salt and freshly ground pepper - and a little more lemon juice if needed.
Put the cabbage, sweetcorn, peas, apple and spring onions in a bowl and toss well with the dressing. Chill the salad in the fridge.
Melt a generous knob of butter in a frying pan and let it foam up. Shape the mixture into meatballs: dip a spoon in hot water, scoop up a portion of the mixture and shape it into a meatball using the spoon and the palm of your hand.
Fry the meatballs until golden on both sides and cooked through in the middle – about 5 minutes on each side over a medium heat.
Serve the juicy meatballs with bread and the cabbage salad - scatter a few chopped pistachios and some spring onion over the top, if you like.