Griddled chicken with quinoa Greek salad

INGREDIENTS

• 225g quinoa
• 25g butter
• 1 red chilli , deseeded and finely chopped
• 1 garlic clove , crushed
• 400g chicken mini fillets
• 1½ tbsp extra-virgin olive oil
• 300g vine tomatoes , roughly chopped
• handful pitted black kalamata olives
• 1 red onion , finely sliced
• 100g feta cheese , crumbled
• small bunch mint leaves, chopped
• juice and zest ½ lemon