Mediterranean Lemon Chicken & Feta Delight

Ingredients

• 30g pitted black olives
• 125g cherry tomatoes
• 300g waxy potatoes
• 4 tbsp olive oil, divided
• 250g diced chicken breast
• Salt and pepper
• 1 lemon
• 1 garlic clove
• 1 red onion
• 1 courgette
• 100g Greek feta cheese
• 1 tbsp dried oregano