Curried aubergine & potato pie - Good Food Middle East

Ingredients

• 1kg potatoes, peeled and cut into 3cm chunks
• 1 tbsp olive oil
• 1 large onion, chopped
• 2 large garlic cloves, crushed
• 2 medium aubergines, cut into 3cm chunks
• 1 tbsp medium curry powder
• 400g can chopped tomatoes
• 2 tbsp tomato purée
• 410g can green lentils, drained