Lamb and feta meatballs

Ingredients

• 400g lamb mince
• 250g pack mixed grains
• 2 tbsp preserved lemon paste
• 75g feta cheese
• Handful flat-leaf parsley, chopped,
• plus extra leaves to serve
• 1 tsp dried mint
• 1tbsp olive oil, plus extra for frying
• 2 fat garlic cloves, crushed
• 400g tin chopped tomatoes
• Head radicchio, separated into leaves
• 50g pitted green olives, sliced if large
• Zest 1 lemon, and cut into wedges for
• squeezing (optional)
• Houmous, to serve (optional)