Free-From fragrant potato and lentil stew

Ingredients

• 1 tbsp oil
• 1 onion, chopped
• 2 cloves of garlic, crushed
• 3cm ginger, peeled and finely grated
• 1 tsp ground coriander
• 1 tsp ground cumin
• 1 tsp smoked paprika
• ½ tsp ground turmeric
• ½ tsp chilli powder
• 1 can of tomatoes
• 2 medium sweet potatoes, peeled and cubed
• 2 potatoes, peeled and cubed
• 150g red lentils
• 1 tbsp maple syrup
• 100g spinach or similar leaf, washed and roughly chopped
• 4 tbsp dairy free yogurt