Combine the ingredients for the meatball mixture, season with salt and freshly ground pepper and mix well.
Shape the mixture into medium-sized meatballs of about 35 g each and place them on a baking tray lined with baking paper. Spray the tops with a little oil and bake in a preheated fan oven at 210°C for about 18-20 minutes.The chicken meatballs can also be fried in a pan.Meanwhile, make the orzo and the garlic yoghurt.
Heat a splash of oil in a pan and fry the shallots and garlic until the shallots are translucent. Add the orzo and the stock and let it simmer over a medium heat until the orzo is tender.You can start with 600 ml of stock and add more as it begins to boil dry.
Add the lemon zest and lemon juice, stir in the oregano and season to taste with salt and freshly ground pepper.
Stir together the ingredients for the garlic yoghurt and season to taste with salt and freshly ground pepper.
Serve the orzo and garlic yoghurt topped with the meatballs and sprinkle with crumbled feta, fresh oregano and grated lemon zest.