Okra and Potato Curry - A better choice!

Ingredients

• 500g Potatoes, halved (or quartered if large)
• 2 tbsp Vegetable Oil
• 12-15 Okra, trimmed and halved lengthways
• 1 Onion, finely chopped
• 2 Garlic Cloves, finely chopped
• 1 tsp each Nigella Seeds, Fennel Seeds, Ground Coriander, and Turmeric
• 1 Red Chilli, finely chopped
• 2 tbsp Tomato Purée
• 500ml Vegetable Stock
• Squeeze of Lemon Juice, to serve
• Fresh Coriander Leaves, to serve
• Greek Yoghurt, Lemon Wedges and/or Naan Bread, to serve