Portuguese chicken, pear and potato tray bake

Ingredients

• 3 pears, quartered, cored
• 3 tbsp olive oil
• 1 tbsp Portuguese chicken seasoning
• 2 garlic cloves, crushed
• 1 lemon, cut into wedges
• 6 skinless chicken thigh cutlets, bone-in (1.5kg), trimmed
• 500 g medium washed potatoes, cut into 2cm thick slices
• 250 g brussel sprouts, halved
• ⅓ cup coarsely chopped fresh parsley
• Couscous, to serve, optional